Out of all the games released on the Wolf3D engine, Rise of the Triad: Dark War is probably the furthest removed from Wolfenstein in appearance and features. However, that wasn't always the case.
In 2014(?), 3DRealms uncovered the original design specs for the game, which portray it's original intention as a direct sequel to Wolfenstein 3D, declaring Hitler a mere puppet to even greater world powers!
The company has shared this information on their legacy website, complete with modern annotations and concept sprites. If you're interested in the history of these games, it's definitely worth a read.