The Auto RGL is the Skorpion vs. 61 in real life or the Klobb from Goldeneye 64. It is found in some single player leveles where it is used by Janus troopers. It is a much missed gun from the consol counterpart and many players hoped for its return but were disapointed when it was only on the DS version of the game.
starting ammo: 20 round magazine, 200 rounds in reserve
rate of fire: very fast