but you can get pretty far, i mean my buddy has it and i was at his house one time. on the map outpost, i made it to the 1st juggernaut before firing a bullet. (i think it was like wave 6 or 7) but still, you don't have to worry to much about most of the enemy's, just play smart, and you can get pretty dang far. and you can always get a predator missile for the juggernauts.