Really enjoyed these maps. They look and play great. I died quite a bit but in this case it's a good thing. I never got frustrated and there was always ammo and health available, so it was only a matter of my own skill. Just really solid levels the whole way through.
Only issue I came across was in the first level with the crushing ceiling near the end. The first time the crusher came down, it never went back up and I was effectively stuck on the outside. Maybe I missed something, but after reloading a save it seemed to go up and down on its own. Otherwise, no issues. Well done!