This is a unique build that utilizes rockets as the main damage source. Strafe and multishot will provide the rocket barrage. The main hatred generator ideally would be from Marked for Death's runestone Proc'ing a lot.
Evasive fire will be used to jump away from enemies that are too close and leave a steaming pile for the enemies to deal with.
Caltrops will leave a long lasting AOE dmg with sentry plopped in the middle to heal you.
Combining Evasive, Caltrops, and a healing sentry will be a killbox for enemies and a healbox for allies.
Pros: can make a killbox/healbox, amazing AOE damage
Cons: small amount of hp regen (needs gear supplementing), embarrassingly low single target dmg, only one slow