Last couple of weeks we've taken a break from our role playing and went to hit the computer games.
Our go to game for four player co-op is terrorist hunt on Tom Clancy's Rainbow Six Vegas 2. We only play on Realistic with high enemy density, despite the fact that one player is a newbie.
So far so good. When we're playing as a team we do rather well. I happen to love this game and love flash banging the new guys and doing other things to troll them.
It's an older game, but has a few bugs that were never really worked out.