CSGO Game Mode Commands
From Valve Developer Community
Here is the table of official game modes and its console commands in Counter-Strike: Global Offensive. Type the commands into the console before loading a map by using the "map <mapname>" console command, or before changing a map by using the "changelevel <mapname>" console command.

Game Mode | game_type | game_mode |
---|---|---|
Competitive | 0 | 1 |
Casual (default) | 0 | 0 |
Wingman | 0 | 2 |
Deathmatch | 1 | 2 |
Demolition | 1 | 1 |
Arms Race | 1 | 0 |
Guardian | 4 | 0 |
Co-op Strike | 4 | 1 |
Danger Zone | 6 | 0 |
Scrimmage | 0 | 1 |