Links below:
Steam: http://store.steampowered.com/
Alien Swarm: http://store.steampowered.com/app/630/
Banana: http://www.youtube.com/watch?v=LH5ay10RTGY
To play the game in first person put these commands into the ingame console:
firstperson
asw_hide_marine 1
asw_controls 0
