Play Alien Swarm in first person

Here is a video of Alien Swarm in 1st person.

To try it yourself, do the following:

Bring up the console by going to Options > Keyboard > Enable developer console.

Then hit ` (to the left of 1 on the keyboard) and type:

  • firstperson
  • asw_hide_marine 1
  • asw_controls 0