Cheat: Adjust Gravity
During gameplay access your console (default key is the ~ button). Now enter sv_gravity and a number between (-999-999999)Note: This code can only be entered fron the host server.

Cheat: Auto-Reload
This code must also be entered from the Host Computer. Hit the ~ (by default).
Enter: +reload
This codes works, but it’s slightly annoying. After every shot you will reload. If you get sick of it, enter this code:
-reload
This will disable auto-reload.

Cheat: Set the C4 Timer
This code must also be entered from the Host Computer. Hit the ~ (by default). Enter: Mp_c4timer (enter a # between –1000 and 1000) –1000 will be a very short timer, and 1000 is a long timer.

Cheat: Faster Movement
These codes must be entered from the Host Computer. Hit the ~ (by default) to access the game console.
Fast forward: cl_forwardspeed (enter # between 0 and 999)
Fast backward: cl_backwardspeed (enter # between 0 and 999)
Fast strafe: cl_sidespeed (enter # between 0 and 999)

Cheat: Level Select
This code must also be entered from the Host Computer. Hit the ~ (by default). Enter: Changelevel (map name)

Cheat: Client trace
On the host comp, enter: sv_clienttrace 999999999.
Every shot will surely hit. The default is 1

Cheat List
Access the console by pressing “`”
Enables cheats: sv_cheats 1
Bots only buy snipers: bot_sniper_only
Bots only use knives: bot_knives_only 1
All Deleted Scenes: cl_levellocks 16382
Enemies don’t see you: notarget
Go through walls: noclip
Invincibility: god
Kills all bots: bot_kill
Make bot go to specific locations: bot_goto_mark
Bots don’t move: bot_zombie 1
Set the bot´s difficulty level: bot_difficulty
Bots will only buy pistols: bot_pistols_only
Restart the map without losing any goals: restart

Cheat: Auto Aim
Automatically aims at your enemies by using the right click abilities of your gun: sv_aim

Cheat: Bind Costumes
This code can also not be entered from the Host Computer. Hit the ~ (by default)
Enter:
bind w “+forward;model sas”
bind d “+moveright;model gig-n”
bind a “+moveleft;model l337”
bind s “+back;model arctic”
bind uparrow “+forward;model vip”
bind rightarrow “+moveright;model sciencetist”
bind leftarrow “+moveleft;model gorila”
bind downarrow “+back;model sas”