Defragmentation Factor

Defragmentation Factor is a single-level PWAD for Doom II that was released on December 9, 2006 by Eugene Guschin (Wraith777). Built using a combination of Doom and Doom II textures, this sprawling map has many themes including techbase, caverns, marble temples and outdoors areas.

Custom monsters
The WAD includes two new enemies through the DeHackEd lump:
 * Plasma Gunner:A red-colored zombie marine which fires four arachnotron plasma balls in rapid succession. It has 150 hit points (replaces the gibbed marine).
 * Double Gunner:A brown-colored zombie marine which fires two shotgun blasts identical to the shotgunner in rapid succession. It has 200 hit points (replaces the dead lost soul).