http://kalence.drupa...!24Z51314!E49A5
First I'm setting this up to be as new player friendly as possible, so you could get more mileage out of going with pure weapon damage on the stim pack tree and ignore fitness or go just a few into overload and fitness. I wanted as much CC and survivability as possible for the OP.
Here's how you max the damage though OP. First on mooks or infantry level humanoid troops, overload then shoot in the head. The shoot in the head part is important if you don't want to be married to the ammo box. Burst fire the harrier don't spray her willy nilly all over the place. Try to get ten headshots minimum every match and you'll notice a definite change in your ammo restrictions with it. There is also a weak points thread that goes through boss weak points that would be helpful to you to conserve ammo. Set your harrier up as I showed in the link, there is no other build despite what some will say any other setup gives you significant damage loss per bullet. Acolyte for heavy shields or problematic phantoms. I generally only stim pack for bosses or when I get into trouble.