Various cheats
     This  cheat involves editing a game file. Always make a backup of
the file before proceeding.

     Use  a  text  editor  to  edit  the "config.ini" file in the game
directory. Add the following line to the end of the file:

bindc+DIK_GRAVE(console_showhide)

     Then,  press  ~  while  playing  to  bring  up the console. Enter
sv_cheats  1  to  enable  cheat  mode, then enter one of the following
codes  at  the  console  window  to  activate  the corresponding cheat
function.

Cheat code:             Effect:
game_godmode 1          God Mode
suicide                 Suicide
g_fly 1                 Fly Mode
g_noclip 1              No Clipping Mode
map [name]              Go to Map [name]
ddammo all              Add ammo to all of your weapons
addwpn ?                A list will show from (1-19) 
                        5 is grenade 19 is flamethrower
cl_showinfo 0           Debug info off
cl_showinfo 1           Debug info on
g_developer 1           Developer mode on
g_developer 0           Developer mod off
g_noclip 0              No collisions mode off
damage player           Damage player by x points putting +x, 
                        heal player by putting -x
g_fly 0                 Flight mode off
addwpn                  Spawn or reload weapon 
                        (insert the weapon's name without the <>)
exit                    Quit game
game_godmode 0          God mode off
map                     Load map 
                        (replace with the name of the map you want to load)
suicide                 Suicide
cl_drawfps 1            Show framerate
cl_drawfps 0            Hide framerate
save                    Save game under this filename
load                    Load save state