Double barrel shotgun (Doom 3)

The Double-Barreled Shotgun, also known as the Super Shotgun, is a weapon introduced to Doom 3 by the Resurrection of Evil expansion pack. It is first found in Erebus Control in Sarge's office.

Combat analysis
The Super Shotgun has nearly equivalent strengths and weaknesses as its classic Doom namesake, since it's a sort of remake of that weapon. It has the same tactical value. Extremely powerful, firing both barrels at once, the double-barreled shotgun will instantly kill most monsters at close range and severely wound more powerful monsters, but loses effectiveness at long range. Reloads rather quickly but its low ammo capacity and single shot can prove slow in a crowd of monsters.

The differences between the super shotgun and the regular one are mainly that the super shotgun (as its nickname implies) is more effective and can cause more damage. Another significant difference is that it only holds two shells at one time (enough for one shot from the weapon). As its name implies, it uses the same kind of ammunition as the shotgun, shotgun shells. Additionally, it is far more accurate than the regular shotgun.

Tactical Analysis
The Super Shotgun can kill any enemy up to a Revenant in one body shot, provided that all of the pellets connect. If aiming for the head, the Super Shotgun is technically capable of felling any non-boss monster in the game, though the chances of getting all the pellets to connect point-blank in the head of a stronger monster like a Hell Knight is almost impossible without The Artifacts' Hell Time effect. In fact, an easy way to take out strong non-boss monsters is to use The Artifact, switch to the Super Shotgun, and charge right under the head of the foe, blasting it point-blank. The Hell Time effect makes it easy to aim well enough to ensure all pellets connect, and the Invulnerability effect provided by The Artifact later on ensures that you are safe from retaliation.