First off, start a server with cheats enabled using
the devmap command in the console. Ex. "devmap
q3test1" Once in the game, go back in the console
and type any of the following: 

give all - get all weapons + the grappling
hook! Some of the models aren't created yet
though 
give health 
give armor 
give quad damage 
give personal teleporter 
god 

by: LoafCow and Ace