Can't Live Without It!
This add on brings so much more to the game! You get more guns, more missions, more enemies, more cars, more achievements, and last but not least, more LEVELS! One of the great things about this add-On are the enemies. The first major one is General Knoxx and you get a very cool reward when you kill him. The other major enemy is Crawmerax the Invincible, which as you might know he is very hard to kill, and you get an achievement for doing it. So if you have this game you should already have this add-On!