Alien Swarm: Advice (How to put another company in practice)
And so let’s start, first open the console, press the tilde (~)
Then we write the command
asw_show_all_singleplayer_maps 1
And press practice (one player)
And a window pops up for you along with the creation of the game, and we choose a company
P. S. Do not judge strictly, this is my first post)