Half-Life: Team Fortress Classic Cheats (PC)

Use the following steps to use the crowbar to shoot bullets from the chaingun or flame
from a pyro. Change your class to an HW or Pyro. Then, use up all your ammo from your
chaingun or flamethrower. After wasting all the ammo, get out the crowbar and hold the
Right Mouse Button (or whatever displays your special ability menu) and run over a pack
of ammo. You should now be able to shoot with your crowbar.

Heavy Power Sniper 

Join a game that has a level with a stationary machine
game(total war). join the game as a sniper walk up to the
gun with your sniper gun out, gain control of the machine
gun and just sniper in, your accurracy will be a lot
better with this. 

Change your class to a scout. Go in the console, type "+reload", then go underwater
in any level. Go in the console and type "kill". Wait for someone to get your pack,
then you will be a zombie. To respawn again, go in the console and type "-reload".

After you got the console working, here are some cheats you can type in:

1)sv_friction-makes it how fast you go on the ground. You must activate
the sv_cheats 1 first.

2)Changelevel ??-to change the level you are on if it is your own
server. Fill the ?? with the name of the level.

3)mp_allowmonsters-If you are doing a level from another mod, or trying
to see the monsters, this will activate them, but you must restart the
level after you type it in.

Start a multi-player game and get the heavy weapons character. Have your Gatlin Gun ready
and get ready to switch your gun. Have the gun that you want, ready then hold the Left
Mouse Button for three seconds. You will hear the gun rotate. The gun you selected will
have the same ammunition that the other gun. This also gives you an extra 192 shots with
the shotguns.

Host your own game and make sure your console command
window is set as the button ~, press it and a window will
come down, type in sv_gravity ***, fill in the *** with
as many numbers as you want, the normal gravity is 600 -700.
have fun. 

Get any
Weapon 

To get any weapon you want, first
the server must type in: "sv-cheats 1" then, in
battle go to the console (~) and type: "give
tf_weapon_???" replace the ??? with weapon you want:

auto cannon=ac

rocket launcher=rl

gerande launcher=gl

pipe bomb launcher=pl

wrench=spammer

knife=knife

tranquilizer gun=tranq

chain gun=ac

rocket Launcher=rpg

medkit=medikit

super shotgun=supershotgun

flamethrower= flamethrower

railgun=railgun

note: if you have trouble getting a weapon, find what it
says when a person gets killed with it 

Note: This must be done on the server machine. Type "sv_cheats 1" at the
console. Change the map with the "changelevel [map name]" console command. Then,
type "tf_weapon_[weapon name]" at the console on any machine connected to the
server to select that weapon.