Jerry and Fritz are two rebels encountered in Deftin's Bunker. walks up to the player and asks him if he has a med kit, as Fritz is badly injured, and if the player does have a med kit, you can heal Fritz. If you don't, and you come back, Jerry will tell you that Fritz died. If you heal Fritz, he will thank you and give you some pistol ammo. After the Deftin Battle, you can find Fritz's dead body right next to the bunker, and Jerry and Owen looking down at his body, and Jerry will say that a Combine Sniper shot him down when he died. You can find the same sniper in the tower next to it. Later, you can find Fritz's gravestone.