Where did Hitler go?
Since no one has answered this yet (although @NoneOfYourBusiness's comments were a lead), there were a number of changes to Ultimate Doom and Doom 2 in the Doom 3 BFG Edition.
Among the changes were:
- All Wolfenstein SS have been search-and-replaced by zombiemen.
- The
ZWOLF*texture with Nazi iconography (Hitler portraits, swastikas, Reichsadlers, etc.) now look like their unadorned counterparts.
The original Doom and Doom 2 sold separately on Steam and the like are unaffected by these changes.