Heavy Weapons are large, bulky instruments that may be slow, but inflict much harm - usually employed by the Force Psyker, or the Soldier. Heavy Weapons have the built-in function of Guidance, compensating for the target's ability to dodge attacks.
Miniguns
These Heavy Weapons emphasize sheer volume of fire, rather than Accuracy. Featuring multiple barrels & unparalleled fire rate.
Rocket Launchers
Hard to find, handle, & care for, their unrivaled firepower is more than sufficient to take out any foe.
Flamethrower
Initial burns highly damage the target, but those who survive the initial fire are likely to reignite.