Double Barreled Shotgun

The Double-Barreled shotgun has been a fixture of the First Person Shooter genre since Doom II, and its devastating power persists in Project Warlock. First "official" appearance is in E2M3, but can be found in E1M8 as a fairly easily-obtainable Secret.

Advantages

 * Remains useful even in late-game for its high damage output
 * Wide spread makes it good at cutting through groups of weaker enemies at medium range

Disadvantages

 * Eats up ammo faster than the Shotgun
 * Has a lower rate of fire than the Shotgun as well

Upgrades
Upgrades for Double Barreled Shotgun are Harvester (2x shells & damage output) and Flak Cannon (adds Fire damage).

Trivia

 * Despite having only twice the barrels of the Shotgun, the Double-Barreled Shotgun launches triple the amount of pellets per blast.
 * The pickup message when acquiring this weapon references Army of Darkness (1992), a fantasy action film with a likewise Medieval setting.