Right now it's useless.
- It's slow, the time it takes to hit a target is the same time it takes the plasma beam to hit the target at least 5x.
- Only 2x damage of a Plasma Beam.
- Can only carry 2 ammo per launcher.
- It's more expensiver then the Plasma beam (4x Elerium per ball, 15 Elerium per beam).
If the damage capacity would be increased to 1600 it would actually be usefull.