Left 4 Dead

Select "Options" at the main menu. Select the "Keyboard/Mouse" option.
Enable the "Allow Developers Console" option. Press ~ during game play
to display the console window. Enter Sv_Cheats 1 to enable cheat mode
for everyone on your hosted server. Enter one of the following codes at
the console window to activate the cheat function.
sv_lan 0 - Enable Internet LAN (*)
map [map name] - Start LAN server (*)
changelevel [map name] - Quick change map
noclip - No clipping mode
god - Invincibility
give [item name] - Spawn indicated item
ent_fire! self setteam 1 - Be spectator
ent_fire! self setteam 2 - Be survivor
ent_fire! self setteam 3 - Be infected
sv_infinite_ammo 1 - Unlimited ammunition
openserverbrowser - Display available servers
z_spawn [NPC name] - Spawn indicated NPC type
impulse 10 - All weapons and ammunition
buddha - Receive damage, but will cannot die
give health - Full health
nb_blind 1 - Infected cannot see you
warp_all_survivors_here - Teleports all survivors to your position
warp_all_survivors_to_checkpoint - Teleports all survivors to nearest checkpointwarp_all_survivors_to_finale - Teleports all survivors to the finale
warp_all_survivors_to_finale - Teleports all survivors to the finale
warp_to_start_area - Teleport yourself to the next chapter
z_common_limit [number] - Set number of civilians
z_mega_mob_size [number] - Set number of panic zombies
Director_force_panic_infinite 1 - Force a panic
director_panic_forever 1 - Panic never stops

НА РУССКИЙ ПЕРЕВЕДИ

короче свой серв тебе надо - больше никак, есть SuperSimple Wallhack (Работает только в режиме Versus) ты видишь других персонажей зелёным цвнтом (это охотника, курильщика и толстяка, танка и ведьму) скоро L4D 2 выйдет=)))

юзай GOOGLE

В инете поищи, там полно. Только чтобы читы работали тебе придется самому серв создавать (через прогу)