Start the game with command Chaser.exe -console command line parameter.
When your are in a game,  bring down the console by pressing ` or ~ key and 
enter one of the following cheats:

cht_god : God Mode 
cht_flymode : Fly Mode 
cht_armor 100 : Get 100 Armor 
cht_weapon weapon : Gives Weapon where weapon is enter weapon name 
cht_health 100 : Gives 100 Health 
cht_giveall : Gives every thing 
cht_timescale time : Change Time where time is enter time 
cht_no_bots_spawn : Unknow
cht_next_rp : Unknow
cht_no_trigger_activate : Unknow 
cht_logactivateparticles : Unknow