Thanks Blattsalat.

I continued to improve this package to work perfectly in real game environments.
So I made collision geometry like the following for all corridor models and props.



I checked it with a profiler tool and I found this:



As you can see it reduces the usage of scripts for collision detection a lot, not just a tiny bit, it reduces it significantly. So there is more room for other scripts, rendering, effects, whatever.

So from what I see it is highly recommended to use extra lowpoly models only for collision detection like I did in this test environment.