My workflow on how I created my M41 projects. I tried to get as much of the process in there as I could. But it makes for a fun project working this way. Take a look! https://80.lv/articles/making-a-research-center-in-maya-unreal-engine-5
The full article can be found here. https://80.lv/articles/making-a-research-center-in-maya-unreal-engine-5
Some of the inspiration and ref I worked from
Modular small wall sets
Modular medium wall sets
Modular large wall sets
Door sets
Decal mesh work
Small asset sets
Large asset sets
Getting motion from a noise function
Detail setup