Sniper Elite Nazi Zombie Army 2 might have one of the dumbest titles I've seen so far, but it's an excellent, but short, co-op game. It's fun if you have a team of 4 dedicated people that you can trust. I have to see that most of the people that play this game at least try to stay connected. I remember the first game being awful, just because halfway through a game you'd practically always be alone. People left whenever things didn't go their way. This game is, so far, different and as I said it's one of the things that make it (more) fun.
The graphics are moody and the levels have a good atmosphere. They absolutely fit this game.
The gameplay is the same as the previous game. You just shoot as many zombies as you can, usually with a sniper rifle. And once in a while a special zombie will appear that requires a bit of (team) effort to take down.
Finishing the game shouldn't take too long; there are only 5 levels to complete. Granted, they're pretty big and should take about 30-45 minutes to finish, usually going from point A to B to C while fighting off hordes of zombies. All you need is a good team. I'm sorry to say that once I finished all of these levels the desire to finish them again was non-existent. Which is unfortunate, because a co-op game should be all about playing with people. I guess it's because the levels are always the same and the zombies always spawn in the same places. So once you've seen it, you've seen it all. That's not a good thing for a game that's all about multiplayer.
That doesn't take away the fact that it's still a very, very enjoyable game. Just don't expect to play it for days and days.