Alien Swarm becomes a FPS 
Console commands: firstperson (turns camera into fps positon) asw_hide_marine 1 (hides the marine model so you can see) asw_controls 0 (makes controls FPS like) also IMPORTANT: asw_ignore_need_two_player_requirement 1 (type this in the console while in the lobby so you can play alone)
Console commands: firstperson (turns camera into fps positon) asw_hide_marine 1 (hides the marine model so you can see) asw_controls 0 (makes controls FPS like) also IMPORTANT: asw_ignore_need_two_player_requirement 1 (type this in the console while in the lobby so you can play alone)
@SNightRheallezza I am not sure, maybe , i have not tried it
pointless