Shadow of Mordor, Tomb Raider, Watch_Dogs, Zelda 2 (SNES on RetroPi). Want to try Red Orchestra with old MOH/BF series friends but trying to avoid time suck on

Shadow of Mordor, Tomb Raider, Watch_Dogs, Zelda 2 (SNES on RetroPi). Want to try Red Orchestra with old MOH/BF series friends but trying to avoid time suck online FPS games.