This ability needs a rework.
Currently it has 10 shots. Slow projectile speed. Very small, if any, AOE. Very hard to prime, aka low acid effect status. Hard to aim with its arc. The damage is pretty good, but RPMs are low. The MW perk is awesome, +200% combo damage is insane, but the ability rarely primes lol.
To improve it, do something like this:
1. Make it more of an acid cloud shooter. Similar to the flame thrower.
2. Add a lot of splash damage AOE to the acid globs. Could leave pools of acid on the floor.
3. Greatly increase projectile speed.
4. Make it actually prime in 2 or 3 shots.
5. Add lock on