Up to 5-20% Strength based on the charge time of your heavy attacks. Stacks 3 times.
3.5-5% Strength for 3.5s on Hit. Stacks 5 times.
5-8% Strength for every 10% of magazine spent during continuous fire. Stacks 5 times.
1-4% Toughness for every 10% of magazine spent during continuous fire. Stacks 5 times.
This build is not for beginners, you need 6 stacks of Martyrdom and the "Desperation" buff or the combat stimm to One shot a Plague Ogryn.
Use the fire barrel to regulate wound damage.
You can one shot the Beast of nurgle with all you hp, your just need to aim for the big weakspot in her back.
Use the blades of faith for dreg ragers and the flamer for the elites hordes.
IMPORTANT: Thrust tier 4 and +25% unyielding is needed.