| 0x0010 | 0x78 | padding / unreflected |
| 0x04 | <MemberId>k__BackingField | uint | Private+1 flags |
| 0x08 | <TeamId>k__BackingField | string | Private+1 flags |
| 0x08 | <InitialTeam>k__BackingField | string | Private+1 flags |
| 0x04 | <ArbitrationStatus>k__BackingField | XblTournamentArbitrationStatus | Private+1 flags |
| 0x08 | <Xuid>k__BackingField | ulong | Private+1 flags |
| 0x08 | <CustomConstantsJson>k__BackingField | string | Private+1 flags |
| 0x08 | <SecureDeviceBaseAddress64>k__BackingField | string | Private+1 flags |
| 0x08 | <Roles>k__BackingField | XblMultiplayerSessionMemberRole[] | Private+1 flags |
| 0x08 | <CustomPropertiesJson>k__BackingField | string | Private+1 flags |
| 0x08 | <Gamertag>k__BackingField | string | Private+1 flags |
| 0x04 | <Status>k__BackingField | XblMultiplayerSessionMemberStatus | Private+1 flags |
| 0x01 | <IsTurnAvailable>k__BackingField | bool | Private+1 flags |
| 0x01 | <IsCurrentUser>k__BackingField | bool | Private+1 flags |
| 0x01 | <InitializeRequested>k__BackingField | bool | Private+1 flags |
| 0x08 | <MatchmakingResultServerMeasurementsJson>k__BackingField | string | Private+1 flags |
| 0x08 | <ServerMeasurementsJson>k__BackingField | string | Private+1 flags |
| 0x08 | <MembersInGroupIds>k__BackingField | uint[] | Private+1 flags |
| 0x08 | <QosMeasurementsJson>k__BackingField | string | Private+1 flags |
| 0x08 | <DeviceToken>k__BackingField | XblDeviceToken | Private+1 flags |
| 0x009F | 0x01 | padding / unreflected |
| 0x04 | <Nat>k__BackingField | XblNetworkAddressTranslationSetting | Private+1 flags |
| 0x04 | <ActiveTitleId>k__BackingField | uint | Private+1 flags |
| 0x04 | <InitializationEpisode>k__BackingField | uint | Private+1 flags |
| 0x00AC | 0x04 | padding / unreflected |
| 0x08 | <JoinTime>k__BackingField | DateTime | Private+1 flags |
| 0x04 | <InitializationFailureCause>k__BackingField | XblMultiplayerMeasurementFailure | Private+1 flags |
| 0x08 | <Groups>k__BackingField | string[] | Private+1 flags |
| 0x08 | <Encounters>k__BackingField | string[] | Private+1 flags |
| 0x08 | <TournamentTeamSessionReference>k__BackingField | XblMultiplayerSessionReference | Private+1 flags |
| 0x00BC | 0x04 | padding / unreflected |
| 0x210 | <InteropHandle>k__BackingField | XblMultiplayerSessionMember | Private+1 flags |