Map is not sealed.
Combat is simplistic and I found myself getting stuck on ladders.
Not a fan of the enemies where grenades bounce off of them, especially when I was saving grenades for real tough combat, and ran out of shells and nails, then ended up throwing grenades at grunts that... don't take grenade damage, lol.
Textures were scaled both up and down in some places, making depth perception and overall texture work just look ugly.
If this is a first map, I think the scale and scope of the project is commendable, but I'd be more forgiving if the map had been sealed. It's one of those things where if you don't know what vis is, you just shouldn't be releasing the map.
Regardless thanks for your criticisms and I'm sorry the level wasn't enjoyable for you.