Counter-Strike: Source PC cheats

Cheat Mode:
Go to "Options", then "Keyboard", then "Advanced". Check the "Developers Console" option. Press ~ during game play to display the console window. Enter one of the following codes:

Effect - Code:
Free bomb, as terrorist - buy c4
Set gravity - sv_gravity [number]
,000 - impulse 101

Getting onto tall boxes without boost:
Buy a frag grenade and stand next to the box that you want to get on. Throw the grenade opposite the box from you onto the floor. Jump, press against the box, and you will be boosted very high. If timed correctly you can get yourself on the box at a cost of 40 HP.

Bot Weapons:
In counter strike source, change what weapons bots have in the console:

bot_allow_ (0 or 1)

replace the with the name of the category of weapon you wish to change. 0 turns it off and 1 turns it on

eg: bot_allow_pistols 1

Weapon names:
Use one of the following entries with the give code to spawn the indicated weapon.

Unlockable: How to Unlock:
AWP (magnum sniper rifle) - weapon_awp
Deagle (Night Hawk) - weapon_deagle
Glock (terrorist default pistol) - weapon_glock
HE grenade (high explosive) - weapon_hegrenade
M249 (heavy machine gun) - weapon_m249
M4A1 (silencable rifle) - weapon_m4a1
P90 (gun with 50 bullets per clip) - weapon_p90
Scout (weakest sniper rifle) - weapon_scout
TMP (silenced SMG) - weapon_tmp