virtual bool StartMatchmaking ( const [TArray](API\Runtime\Core\Containers\TArray)< [FSessionMatchmakingUser](API\Plugins\OnlineSubsystem\Interfaces\FSessionMatchmakingUser) > & LocalPlayers, [FName](API\Runtime\Core\UObject\FName) SessionName, const [FOnlineSessionSettings](API\Plugins\OnlineSubsystem\FOnlineSessionSettings) & NewSessionSettings, [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FOnlineSessionSearch](API\Plugins\OnlineSubsystem\FOnlineSessionSearch) > & SearchSettings, const [FOnStartMatchmakingComplete](API\Plugins\OnlineSubsystem\Interfaces\FOnStartMatchmakingComplete) & CompletionDelegate )