Comments - Nadia

You can play Alien Swarm in single player mode, controlling up to 4 marines. It involves a lot of micro managing, but it's still a good way to learn the ropes :) As P4R4.be says, it's more fun to play coop with other players.

Hmm too difficult ? Do you play single player or with other people ?

Yea, the team behind the Telic campaign are not Black Cat Games (who are still working on Alien Swarm: Infested, the Source Engine version), although they have a very good relation with them :)