I recommend this game anyone who would like to play sometimes a tactical shooter with friends together in co-op mode. The complete story can be played together, but there are also challenges wird.usw which fought on certain cards against Teroristen. The Schwierigskeit degree is adjustable and each player needs an original game. Playable it is on the LAN and the Internet. For single player, I recommend this game only partly because there are far better.
Conclusion: Coop hui, single ... goes like this ^^