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The Chaingun returns to Doom Eternal with a new look. It no longer requires a spinup time to fire at maximum speed, and it uses the same ammo type as the Heavy Cannon.

Its Mobile Turret mod also returns to the fray, which now visually has four clusters of three barrels instead of three clusters for maximum firepower. As with its previous incarnation, the turret stalls if it overheats. However, if the Ultimate Cooling upgrade is acquired, it is impossible to make the weapon overheat when in turret mode, despite the overheating indicator around the crosshair still increasing, as shown by this video. It also has an Energy Shield mod that absorbs damage for a short time.

Codex Entry[]

The M220 Chaingun is a 7.62x51 mm AE six-barreled autocannon built for infantry deployment. Weighing over 80 lbs, the M220 was conceived as a standard issue weapon for ARC mech-soldiers fitted with exo-armor - mechanized suits capable of supporting a heavier payload. The AE cartridge uses a special electromagnetic casing designed specifically for the M220's rail system, which increases projectile velocity and reduces overheating. - Codex Entry

Modifications[]

Mobile Turret[]

Upgrades[]

Upgrades Description Cost

Challenge

Rapid Deploy Turret mode transform speed +50%. 3
Fast Gunner Increased movement speed while in Mobile Turret mode. 6
Ultimate Cooling Turret no longer stalls. Kill 5 enemies with a single turret without overheating, 10 times.

Energy Shield[]

Upgrades[]

Upgrades Description Cost

Challenge

Faster Recovery Energy Shield recharge time -37.5%. 3
Dash Smash Dashing into Heavy demons will cause them to falter. 6
Shield Launch Dealing enough damage with the Chaingun while the Energy Shield is active will launch it forward on release. Any demons hit by this projectile will falter. Deal 20,000 damage while Energy Shield is active.

Ammunition[]

The Chaingun shares its ammo pool with the Heavy Cannon. The player can increase their max ammo cap by using Sentinel Crystals and allocating its power to the "Ammo" subsystem.

Bullets
"Ammo" Level Max Ammo
1 60
2 90
3 120
4 150
5 180

Weapon Skins[]

As with most other weapons in Doom Eternal, the Chaingun has several weapon skins available.

DOOM Eternal: Chaingun Codex

07B50291-A759-4E0E-8152-E91649ABD6AC

Chaingun Codex

Trivia[]

  • This iteration of the Chaingun fires real-life 7.62x51 mm NATO rounds, albeit with Argent Energy (AE) projectiles, which explains the blue glow of the cartridges. As it's chambered in a rifle cartridge, its classification in the Codex as an autocannon is incorrect.
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