Wolf, Keen (I find Keen frustrating) and Doom Guy are all in the Blazko family. I think I read a post about these boxes, and its like the Nazis using time travel to get them. In the New Order timeline I think the Nazis do basically the same thing, linking Keen remake and 2016 DOOM with 2014 Wolf all together.

interesting

tied in universe of the 90's
commander keen, doomguy etc

Think this just shows how lazy FormGen was, outright stealing a texture from Doom without removing the UAC logo or change it to something else. This description even fits to the entire mission packs too.

It's from Spear of Destinry Missions that came in 1994, and Doom came in 1993. So it's not retroactive.

rofl wtf Owl Fucker. that's deep!

Apparently the lore reason is that the Nazis used either magic or technology to time travel and take technology from the UAC. Doom and Wolfenstein are in the same universe, in fact BJ is Doomguy's great great grandfather (And Commander Keen's grandpa :D)

Huh, pretty weird

Well DOOM was in development by this stage, Spear of Destiny was knocked out pretty quickly.

don't think of easter egg cuz this game came out in 92 Doom in 93... maybe same sort off universe