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  <xsd:element id="mrcy_AmortizationTermofCreditFacility" name="AmortizationTermofCreditFacility" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_AssetsDisposed" name="AssetsDisposed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_BacklogMember" name="BacklogMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_BusinessCombinationPortionofPurchasePriceReservedinEscrow" name="BusinessCombinationPortionofPurchasePriceReservedinEscrow" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="mrcy_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssetsCurrentAndNoncurrent" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssetsCurrentAndNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="mrcy_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedTangibleAssets" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedTangibleAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="mrcy_CarveOutBusinessMember" name="CarveOutBusinessMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_CashAndCashEquivalentMaturityPeriod" name="CashAndCashEquivalentMaturityPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_CollateralCapitalStock" name="CollateralCapitalStock" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_CompletedTechnologyMember" name="CompletedTechnologyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_ComputersEquipmentAndSoftwareMember" name="ComputersEquipmentAndSoftwareMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_ConcentrationRiskNumber" name="ConcentrationRiskNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_CreditAgreementMember" name="CreditAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_DeferredTaxAssetsAndLiabilitiesAxis" name="DeferredTaxAssetsAndLiabilitiesAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_DeferredTaxAssetsAndLiabilitiesDomain" name="DeferredTaxAssetsAndLiabilitiesDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_DeferredTaxAssetsInventoryValuationAndReceivableAllowances" name="DeferredTaxAssetsInventoryValuationAndReceivableAllowances" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="mrcy_DeferredTaxLiabilityChangeinTaxMethodAccounting" name="DeferredTaxLiabilityChangeinTaxMethodAccounting" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="mrcy_DisposalGroupIncludingDiscontinuedOperationAmortization" name="DisposalGroupIncludingDiscontinuedOperationAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="mrcy_DisposalGroupIncludingDiscontinuedOperationCapitalExpenditures" name="DisposalGroupIncludingDiscontinuedOperationCapitalExpenditures" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_DisposalGroupIncludingDiscontinuedOperationCostsAbstract" name="DisposalGroupIncludingDiscontinuedOperationCostsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_DisposalGroupIncludingDiscontinuedOperationDepreciation" name="DisposalGroupIncludingDiscontinuedOperationDepreciation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="mrcy_DisposalGroupIncludingDiscontinuedOperationEmployeerelatedLiabilitiesCurrent" name="DisposalGroupIncludingDiscontinuedOperationEmployeerelatedLiabilitiesCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="mrcy_DisposalGroupIncludingDiscontinuedOperationImpairmentofGoodwill" name="DisposalGroupIncludingDiscontinuedOperationImpairmentofGoodwill" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="mrcy_DisposalGroupIncludingDiscontinuedOperationResearchandDevelopment" name="DisposalGroupIncludingDiscontinuedOperationResearchandDevelopment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="mrcy_DisposalGroupIncludingDiscontinuedOperationRestructuringandOtherCosts" name="DisposalGroupIncludingDiscontinuedOperationRestructuringandOtherCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="mrcy_DisposalGroupIncludingDiscontinuedOperationSellingGeneralandAdministrativeExpense" name="DisposalGroupIncludingDiscontinuedOperationSellingGeneralandAdministrativeExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="mrcy_DisposalGroupIncludingDiscontinuedOperationSharebasedCompensation" name="DisposalGroupIncludingDiscontinuedOperationSharebasedCompensation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="mrcy_DisposalGroupIncludingDiscontinuedOperationsUnbilledReceivablesandCostsinExcessofBillingsCurrent" name="DisposalGroupIncludingDiscontinuedOperationsUnbilledReceivablesandCostsinExcessofBillingsCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="mrcy_DocumentDocumentandEntityInformationAbstract" name="DocumentDocumentandEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_EffectiveIncomeTaxRateReconciliationAcquisitionCosts" name="EffectiveIncomeTaxRateReconciliationAcquisitionCosts" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_EffectiveIncomeTaxRateReconciliationChangesInContingentConsideration" name="EffectiveIncomeTaxRateReconciliationChangesInContingentConsideration" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_EffectiveIncomeTaxRateReconciliationExcessTaxBenefitsOnStockCompensationPercent" name="EffectiveIncomeTaxRateReconciliationExcessTaxBenefitsOnStockCompensationPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_EffectiveIncomeTaxRateReconciliationOfficerCompensation" name="EffectiveIncomeTaxRateReconciliationOfficerCompensation" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount" name="EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="mrcy_EffectiveIncomeTaxRateReconciliationStockCompensationShortfalls" name="EffectiveIncomeTaxRateReconciliationStockCompensationShortfalls" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_EmployeeStockPurchasePlanMaximumPercentageOfCompensationToPurchaseSharesByEligibleParticipants" name="EmployeeStockPurchasePlanMaximumPercentageOfCompensationToPurchaseSharesByEligibleParticipants" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToIndividualForeignCountries" name="EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToIndividualForeignCountries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_F35ProgramMember" name="F35ProgramMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_FairValueAdjustmentsFromPurchaseAccounting" name="FairValueAdjustmentsFromPurchaseAccounting" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="mrcy_IncreaseDecreaseInInventoriesIncludingAssetsAcquired" name="IncreaseDecreaseInInventoriesIncludingAssetsAcquired" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="mrcy_IncreaseDecreaseinRestrictedCashFinancingActivities" name="IncreaseDecreaseinRestrictedCashFinancingActivities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_KeyBankNationalAssociationMember" name="KeyBankNationalAssociationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_LeaseTermOptiontoRenew" name="LeaseTermOptiontoRenew" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_LewisInnovativeTechnologiesMember" name="LewisInnovativeTechnologiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_LockheedMartinCorporationMember" name="LockheedMartinCorporationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_MercuryCommercialElectronicsMember" name="MercuryCommercialElectronicsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_MercuryDefenseSystemsMember" name="MercuryDefenseSystemsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_MercuryIntelligenceSystemsBusinessUnitMember" name="MercuryIntelligenceSystemsBusinessUnitMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_MicroneticsMember" name="MicroneticsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_MinimumGrantDateFairValueOfNonqualifiedStockOptionsAsPercentageOfFairValueOfCommonStock" name="MinimumGrantDateFairValueOfNonqualifiedStockOptionsAsPercentageOfFairValueOfCommonStock" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="mrcy_NatureofBusinessNumberofContractorsUsingProductsandServices" name="NatureofBusinessNumberofContractorsUsingProductsandServices" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_NatureofBusinessNumberofProgramsUsingProductsandServices" name="NatureofBusinessNumberofProgramsUsingProductsandServices" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_NonCancelablePurchaseCommitmentsMember" name="NonCancelablePurchaseCommitmentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_NorthropGrummanCorporationMember" name="NorthropGrummanCorporationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_NumberofComponentsWithinOperatingSegment" name="NumberofComponentsWithinOperatingSegment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_OtherAmortizableAssetsMember" name="OtherAmortizableAssetsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_OtherMembersMember" name="OtherMembersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_PatentsAndLicensingRightsMember" name="PatentsAndLicensingRightsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_PatriotProgramMember" name="PatriotProgramMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_PercentageOfIncomeTaxExaminationMinimumLikelihoodOfTaxBenefitsBeingRealizedUponSettlement" name="PercentageOfIncomeTaxExaminationMinimumLikelihoodOfTaxBenefitsBeingRealizedUponSettlement" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="mrcy_ProductWarrantyTerm" name="ProductWarrantyTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_ProgramConcentrationRiskMember" name="ProgramConcentrationRiskMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_QuarterlyAmortizationPaymentsPercentage" name="QuarterlyAmortizationPaymentsPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_RaytheonCompanyMember" name="RaytheonCompanyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_RestrictedCashMember" name="RestrictedCashMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_RestructuringChargesNet" name="RestructuringChargesNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_RestructuringPlan2014Member" name="RestructuringPlan2014Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_RestructuringandOtherChargesMember" name="RestructuringandOtherChargesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_RestructuringandRelatedCostNumberofFacilitiesClosed" name="RestructuringandRelatedCostNumberofFacilitiesClosed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_RevenuesFromTransactionsWithOtherGeographicLocationsOfSameEntity" name="RevenuesFromTransactionsWithOtherGeographicLocationsOfSameEntity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_SEWIPProgramMember" name="SEWIPProgramMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_SaleLeasebackTransactionDeferredGainCurrentPortion" name="SaleLeasebackTransactionDeferredGainCurrentPortion" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="mrcy_SaleLeasebackTransactionDeferredGainLongTerm" name="SaleLeasebackTransactionDeferredGainLongTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="mrcy_SaleLeasebackTransactionDeferredGainTotal" name="SaleLeasebackTransactionDeferredGainTotal" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="mrcy_SaleLeasebackTransactionLeaseTerm" name="SaleLeasebackTransactionLeaseTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_SaleLeasebackTransactionLeaseTermsNumberOfRenewalOption" name="SaleLeasebackTransactionLeaseTermsNumberOfRenewalOption" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_ScheduleOfComponentsOfDeferredTaxProvisionLineItems" name="ScheduleOfComponentsOfDeferredTaxProvisionLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_ScheduleOfComponentsOfDeferredTaxProvisionTable" name="ScheduleOfComponentsOfDeferredTaxProvisionTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_ScheduleOfReconciliationOfNetIncomeTableTextBlock" name="ScheduleOfReconciliationOfNetIncomeTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_ScheduleOfUnamortizedDeferredGainFromSaleLeasebackTransactionsTableTableTextBlock" name="ScheduleOfUnamortizedDeferredGainFromSaleLeasebackTransactionsTableTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_SeniorUnsecuredCreditFacilitiesMember" name="SeniorUnsecuredCreditFacilitiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_SeveranceMember" name="SeveranceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_ShareBasedCompensationArrangementByShareBasedPaymentAwardContractualLife" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardContractualLife" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_ShareBasedCompensationStockOptionsAssumed" name="ShareBasedCompensationStockOptionsAssumed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_StockOptionPlanNineteenNinetySevenMember" name="StockOptionPlanNineteenNinetySevenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_StockOptionPlanTwentyZeroFiveMember" name="StockOptionPlanTwentyZeroFiveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_TaxCreditCarryforwardExpirationYear" name="TaxCreditCarryforwardExpirationYear" nillable="true" substitutionGroup="xbrli:item" type="xbrli:gYearItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_TermLoanMember" name="TermLoanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mrcy_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositionsDeemedEffectivelySettled" name="UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositionsDeemedEffectivelySettled" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mrcy_WeightedAverageNumberBasicAndDilutedSharesOutstandingAbstract" name="WeightedAverageNumberBasicAndDilutedSharesOutstandingAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
</xsd:schema>
