Cheat Codes:
Edit the shortcut to the game so it reads the following:
"C:\LOCATION OF GAME\mohaa.exe" +set ui_console 1 +set cheats 1
+set thereisnomonkey 1 

     When  in  the  game press ~ to display the console window. Put in
one of the following cheats:

Code                    Result 
wuss                    Gives player all weapons 
dog                     God Mode 
fullheald               Heal player 
notarget                Removes target 
give ammo               Max ammo
noclip                  No clipping
listinventory           List of the player's inventory
tele x y z              Teleport to location
coord                   Prints out current location and angles
health                  Set current health
kill                    Kills the player
winchester              Invincibility

giveweapon weapons/"weapon_name".tik
                        Gives the player the specified weapon 
map "map name"          go to map (see below) 

Weapon Names: 

Code                    Weapon 
colt45                  Colt 45
m2frag_grenade          Frag Grenade
p38                     Walther P38
steilhandgranate        Steilhandgranate 
m1_garand               M1 Garand
kar98                   Mauser KAR 98K
shotgun                 Shotgun
bazooka                 Bazooka
panzerschreck           Panzerschreck
bar                     BAR
mp44                    StG 44
thompsonsmg             Thompson
mp40                    MP40
springfield             Springfield '03 Sniper
kar98sniper             KAR98 Sniper

Maps: 

m1l1
m1l2a
m1l2b
m1l3a
m1l3b
m1l3c
m2l1
m2l2a
m2l2b
m2l2c
m2l3
m3l1a
m3l1b
m6l3e