You know those little green glowing blocks that you often see laying all over the ground? Well if you walk over to one you will find that it contains what is called "special ammo." Now the great thing about this ammo is that it can be used for shotguns, fusion rifles, sidearms, and yes, it can even be used for sniper rifles. So if you happen to find that you have used all of you ammo for one of these weapons, then simply walk over to one of these glowing green blocks and you too can enjoy the many benefits of "special ammo!" Disclaimer: special ammo is not compatible with Ice Breaker sniper rifle.