Zealot
3.5-5% Strength for 3.5s on Hit. Stacks 5 times.
Up to 5-20% Strength based on the charge time of your heavy attacks. Stacks 3 times.
4.25-5% Strength for every Enemy you Stagger. Stacks 5 times.
Ranged hits add 1-4 stacks of bleed to enemies.
Can Swap out Bleed For the Emperor/Vicious Offering/Toughness Node for Duellist/Melee Damage Node/Sustained Assault if you feel plenty tanky already and want more melee DPS or for Emperor's Bullet/Unremitting/Sainted Gunslinger if you want more ranged DPS/reload speed on bolter.
Can swap between either of the Thammers or Bolters depending on preference; they are both good, just different movesets/applications.
You primary job is holding back the horde, secondary melting close quarters specialists and bosses.
Your bolter blessings are somewhat choose your own adventure, if you find lethal prox funny for example, I've simply put the more or less undisputed best blessings for your weapon/application for thammer and bolter.