These are the console commands that I know work. If you know of others, please post them here.
Console Commands for C4:
Press `~` (tilde) and enter the command you want:
Command = Function/Action
Punt #=Punts a player by ID number
Bozo #=Ignore text messages of a player ID number (only ignores team chat "Y", does not block text chat "T".)
savescores=Save Scores
exit=Exit Mission
quit=Exit Game
flipmouse=Flip Mouse (swaps mouse up/dwn direction)
restart=Restart Mission (restarts current mission)
huddetail=Hud Detail (Same as F6)
resetgames=Reset Game (ends current game & defaults to whatever you have selected in the Replay box on the host screen.if it is set to no, the game will end & return you to the host screen)
Ban # =Ban a player by name or IP-adress (player will be punted & if they try to rejoin they will get a message that they have been banned from this game. this lasts only while the host is up)
command=Command Prompt
OldMessages=Recent Messages (same as pressing "R")
talk=Chat (same as pressing t)