This is a an ammo payload type. Switching to the combusting smart ammo will equip your bullets with incendiary payload, which explode for thermal damage. Damage dealt to props with this payload will light the props on fire.

Skill: Gunslinging
Group: Smart Ammo
Command: GUN SWITCH COMBUSTING
Known: No
Lessons: 545 Lessons
Ability type: Noncombat utility
Base balance time: 1.00 seconds