Sniper Post
While in network or botmatch, select the DECK 16 level. Go to the highest point on the ramps and look for the little area with the assault rifle. From there you can easily thin out the town's population. Happy sniping!

No clipping
Press [TAB] during game. Then enter "GHOST" at the console window.
(Note: To enable clipping, type: "WALK".)

Play dead
Press [TAB] during game. Then enter "FEIGNDEATH" at the console window.

Immune to drowning
Press [TAB] during game. Then enter "AMPHIBIOUS" at the console window.

Set field of vision
Press [TAB] during game. Then enter "FOV angle" at the console window where angle is an angle in degrees. (Note: default is FOV 90.)

Invisible
Press [TAB] during game. Then enter "INVISIBLE" at the console window. (Note: On a network, a remote administrator activates cheat.)

Show network sockets
Press [TAB] during game. Then enter "SOCKETS" at the console window to display Usnet connection sockets in use.

Music Selection
Press [TAB] during game. Then enter "CDTRACK number"at the console window, where number is the desired track.

Add more bots
Press [Tab] during game. Then enter "ADDBOTS amount" at the console window, where amount is the number of new bots to be added.

Advance to indicated map
Press [Tab] during game. Then enter "OPEN map" at the console window, where map is the name of the desired map.

All weapons
Press [Tab] during game. Then enter "LOADED" at the console window.

Broadcast a message to other players
Press [Tab] during game. Then enter "SAY message" at the console window, where message is the text you want to broadcast.

Ammunition
Press [Tab] during game. Then enter "ALLAMMO" at the console window to receive 999 units of ammo for all weapons.

Fix garbled graphics
Press [Tab] during game. Then enter "FLUSH" at the console window.

Flight mode
Press [Tab] during game. Then enter "FLY" at the console window.
(Note: To disable Flight mode, enter "WALK".)

Freeze players
Press [Tab] during game. Then enter "PLAYERSONLY" at the console window. This cheat is useful for taking screen shots and debugging scripts.