Veteran
14-20% Impact for 2 seconds on Repeated Hit. Stacks 5 times.
Up to 5-20% Strength based on the charge time of your heavy attacks. Stacks 3 times.
You can Hipfire with this weapon while Sprinting. 6-15% Close Damage while Sprinting. Also reduces weapon spread at all times by 30%.
70-100% Critical Weak Spot Damage.
This build let you use the Marksman's Focus while having good mobility, and high toughness and toughness damage resistance.
The point is that when you activate Marksman's Focus you'll have 6 seconds to relocate or to reload.
Every time you make an elite kill and wish to reload, do an slide, and check the surrounding area, run and defeat one enemy with run-and-gun blessing to keep yourself safe at the same time that avoid hordes.
The boltgun allows to defeat all the armored enemies with headshots, remember, shoot, reposition, and shoot again.
Always try to reload when you'll have at least one bullet in the chamber to use the +25% reload speed. This is just for safety to keep the talent timer up, if you can manage to kill and reload fast enough you can skip the Tactical Reload talent and all the right side of the tree, but be warned that Out for Blood does a huge difference if you can't manage to become safe by yourself.