It's, wait for it, a scope!

Whaddaya mean it's already been suggested?

All kidding aside, what I did come up with is a new ammo type for it:
Plasma bolts!
Instead of firig a solid slug, the gun fires a bolt of fusing plasma - While the kinetic energy is reduced, the thermal transfer is even greater, even after absorbtion by shielding, and the ionised gas has unusual side effects on metallic structures...
Prim. fire: Plasma bolt slightly lower damage/speed than normal, but sets organic targets on fire. Against vehicles, hull ionisation causes guides missiles within a certain radius to lock on and target the ionised hull, regardles of who fired them (should apply to AVRiL rockets, maybe to raptor missiles/cicada secondary fire, not CUT RL, spidermines or proxies, unless funny)
Secondary fire: plasma overload; sets a clip of plasma bolts on feedback overload and drops it where player stands. They then have x seconds to get away, before clip explodes with similar effects to primary fire, only in a fairly wide radius.
so, whadda y'all think?