In Destiny 2, special ammo weapons use a different type of ammo due to their higher damage or specialized use. Special ammo weapons include:
- Fusion Rifles
- Breech-loaded Grenade Launchers
- Trace Rifles
Special ammo appears as green ammo bricks when killing enemies, but will only drop if you currently have a weapon that requires special ammo equipped. When starting a new activity (such as a story mission or a strike) the game will make sure you start with a small amount of special ammo if you have one of these weapons equipped. If, however, you switch to a special ammo weapon during an activity then you will need to defeat enemies to obtain special ammo.
Special ammo weapons can be worthwhile in PvE due to their higher single-target damage potential, making them useful against tougher enemies. In PvP, special ammo weapons often have the potential to kill opponents with a single shot.