Reduce your active Cooldowns by 2s after getting a Killing Blow while in Burst Mode.
Level 2
Nasty Surprise
Explosive Dodge
Generate 5 Ammo after activating Explosive Dodge.
Level 1
Red Room
Trigger Discipline
Increase your Movement Speed by 16% while in Automatic fire mode.
Level 4
Tick Tock
Armor
Reset the Cooldown of Grappling Hook after falling to or below 25% Health.
Level 5
Tribunal Upgrades
Heavy SMG has three elemental effects: Fire imbued Mag Dump -- dealing damage over time, Electrically charged burst mode -- dealing AOE damage on stacks, and Ice infused Automatic -- shots slows enemies.