All Hell is Breaking Loose

All Hell is Breaking Loose is a total conversion for Doom II. It was created by Joel Huenink and released on July 17th, 1996. All Hell is Breaking Loose contains several gameplay changes through extensive use of DeHackEd, most notably new weapons that behave differently from those found in the original game. New monsters are also included, as well as five new levels, new graphics, new music, new sound effects, and new voice-overs.

Development
According to a Doomworld interview with Joel Huenink in 1999, development on All Hell is Breaking Loose began in December of 1995. According to its Doomworld page, the WADs build time was 2 to 6 hours a day over a period of 10 months.

Weapons

 * Double Fists (Fist replacement)
 * Double-bladed Chainsaw (uses a new sprite, Chainsaw replacement)
 * Double Pistols (uses new sprites, Pistol replacement)
 * Streetsweeper (uses a new sprite, Shotgun replacement)
 * Super Shotgun
 * M-16 (uses a new sprite, Chaingun replacement)
 * Rocket Launcher (uses a new sprite)
 * Flamethrower (uses a new sprite, Plasma Gun replacement)
 * BFG 10000 (BFG 9000 replacement)

Monsters

 * Two-headed commando
 * Commando-Arachnotron combo
 * Fire Demon
 * Red Space Marine
 * Flaming Baron
 * Apache helicopter
 * Pit Fiend (brown, green and grey)
 * Giant Cyberdemon