Tribes: Vengeance [cheats] 
Start the game with the -console command line parameter. Press [Tab] during game play to display the console window at the bottom of the screen. Then, enter one of the following codes to activate the corresponding cheat function. 

Effect Code 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
God mode - god 
Three weapons with full ammo, depending on character - allweapons 
Full ammo for weapons/grenades - allammo 
Field of view by number - fov [num] 
Remove all stat display - stat none 
Display all stats - stat all 
Display framerate - stat fps 
Display network stats - stat net 

-from Huzaifah Sultan