Unlock Extras
     Start  a multiplayer practice. Press F8 and type 'extras fnkqrrm'
and  press  Enter.  It  will  display  Extras  Enabled.  Now go to the
purchase terminal. Hold Alt before you go to the Character or Vehicles
screen.

Infinite Skirmish Time
     Always  make  a  backup  before saving any changes. Open the file
'(game_dir)datasvrcfg_skirmish.ini'  in  any  text  editor. Change the
'gametime' value to zero.