Well, my main issue is shields and even my lvl 2 Reegar melts them. Haven't tried a Disruptive Ammor on a Disciple but I doubt it'll be faster to drop shields than the Reegar.
As OP as the Reegar is, it melts nothing when you're dead. When it, and gear
mods are high level, you melt things so fast you do not die. Looking at your
manifest, your gear is not at that point (if that is the way you want to play).
Given your gear, I'd suggest:
disruptor III or Incendiary III
Cyclonic II or Cyclonic III
Strength II or Strength III
disciple (or any weapon that gives you 200% cooldown
With just a little bit of strategy, your gear with a melee
krogran vanguard will get you through a gold solo.
Stay in melee all the time, charge on cooldown.
You'll shrug off double primes with bombers and
rocket plinkers. Strip prime shields (maybe poke
from range as they approach), then keep fire/disruptor
up between charges. That gives you additional dps
via fire/tech explosions.
Heavier weapons, means less charge/shield restores.
Which is fine when your gear is high level. With lower
level gear, you have to pay more attention to your
survival.