ahhh, okay, I didn't fuck up importing these 3D models into Deus Ex, they show up in UnrealEd1 just fine
but not UnrealEd2, which
oh, which never got officially released with support for Deus Ex because the Ion Storm guys made some low-level changes to things like
...the engine's vertex format 🤔...
and UnrealEd2 is only available for Deus Ex as a result of fan hackery, which
oh
oh my god I think I know how they did that and it's oh my god it's so awful and ingenious