Heavy cannon

The heavy cannon is a multi-purpose automatic rifle which occurs as a weapon in Doom Eternal, replacing the heavy assault rifle from the previous game, with soome changes to the modifications and upgrades.

"Precision weapon, making it good against weakpoints. Good for interrupting mobile demons like the imp."

- Doom Eternal dossier protip

Tactical analysis
The precision bolt also deals extra damage to weak spots, enabling one to destroy, for example, the arachnotron's cannon or the revenant's rocket launchers. Using the precision bolt is also the best mod to use to kill Maykr drones as they drop a considerable amount of resources once killed with a headshot.

Lore
The Heavy Cannon is built from Tungstronium, a proprietary alloy developed to withstand the stresses from the explosive darts it can use as ammunition. Its great weight, while a common complaint among users, makes it an effective sniper weapon as it reduces the effect of swaying and tremors. Its no-pull reflex trigger system demands excellent trigger discipline in order to prevent self-inflicted gunshot wounds.

Precision Bolt

 * Mobility
 * Precision Bolt movement speed is increased by 15%


 * Fast Loader
 * Precision Bolt reload speed increased by 20%


 * Headshot Blast
 * A headshot kill will set off a powerful, secondary blast that deals damage to nearby demons
 * Mod is unlocked by performing 75 headshots while scoped in with the Precision Bolt mod

Micro Missiles

 * Quick Recharger
 * Micro Missile reload time is decreased by 35%


 * Instant Loader
 * Micro Missile load time is decreased by 75&


 * Primary Charger
 * Kills with the Heavy Cannon will boost Micro Missiles damage by 30% for 5 seconds


 * Bottomless Missiles
 * Fire Micro Missiles indefinitely without requiring a reload
 * Mod is unlocked by hitting at least three enemies in a single Micro Missile volley 15 times