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  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xs:import namespace="http://fasb.org/srt-types/2026" schemaLocation="https://xbrl.fasb.org/srt/2026/elts/srt-types-2026.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/sic/2026" schemaLocation="https://xbrl.sec.gov/sic/2026/sic-2026.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/ecd/2026" schemaLocation="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/ecd-sub/2026" schemaLocation="https://xbrl.sec.gov/ecd/2026/ecd-sub-2026.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei-sub/2026" schemaLocation="https://xbrl.sec.gov/dei/2026/dei-sub-2026.xsd"/>
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  <xs:element name="BenitoNovasMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="mssv_BenitoNovasMember"/>
  <xs:element name="BusinessCombinationMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="mssv_BusinessCombinationMember"/>
  <xs:element name="CancunLeaseMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="mssv_CancunLeaseMember"/>
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  <xs:element name="DigitalArtsMediaNetworkMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="mssv_DigitalArtsMediaNetworkMember"/>
  <xs:element name="EnterpriseTechnologyConsultingMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="mssv_EnterpriseTechnologyConsultingMember"/>
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  <xs:element name="IntellectualPropertyLicensesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="mssv_IntellectualPropertyLicensesMember"/>
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  <xs:element name="LansHoldingsIncMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="mssv_LansHoldingsIncMember"/>
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  <xs:element name="MarketValueOfCommonStockOnMeasurementDateMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="mssv_MarketValueOfCommonStockOnMeasurementDateMember"/>
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  <xs:element name="MrMelvinPereiraMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="mssv_MrMelvinPereiraMember"/>
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  <xs:element name="TulumTradeCenterMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="mssv_TulumTradeCenterMember"/>
  <xs:element name="TwoThousandTwentyFiveTransactionsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="mssv_TwoThousandTwentyFiveTransactionsMember"/>
  <xs:element name="TwoThousandTwentySecuredNoteMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="mssv_TwoThousandTwentySecuredNoteMember"/>
  <xs:element name="WarrantsCashlessExerciseMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="mssv_WarrantsCashlessExerciseMember"/>
  <xs:element name="convertibleNotesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="mssv_convertibleNotesMember"/>
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  <xs:element name="DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="mssv_DocumentAndEntityInformationAbstract"/>
</xs:schema>
