It doesn't matters if you got the file from Steam, Gog.com, whatever,any official version of the doom2.wad file will work. Following the GZDoom port of Doom 64, BD-64 revitalizes the old Doom 64 with new special effects, particles, lightning, gore, new sounds, more weapon animations (shotgun reloads, smoother minigun barrels, etc.) The Unmaker (aka Unmaykr or Laser) is a weapon found in Doom 64 and Doom Eternal.
