Spoiler:ok, now the level can be done super quick, and it's way more intutitve to know where to go, the changes you made provides visual indication of "what do I need to do now".
Few thing, even in Ultra Violence, this version seems easier than 0.26, I never ran out of ammo or health. Gotta say I didn't try Nightmare since UV is my default difficult. I'm gonna try Nightmare later today.
*Melee combat is waaaaaay efficient, even against non zombie enemies. Alt fire can make you "fly". I would nerf the whole melee combat. Either damage or range if not both.
*There is a lot of pick ups, you hardly will feel low on anything. Also the low health of enemies and the massive damage of the weapons make it worst.
*Enemies in general had low health, if you implemented the Headshot mechanic, I don't see why they can't have more health. Also, I miss the bullets-ponge zombies (Also loved the new sprites you added).
*I see you revamped some areas and I like them.
*Armed enemies are slow to react, and they do little to no damage (if you let them time to shoot).
*Is the Siren less aggresive in the current version? Not sure but I found it easier to avoid and it seems to be slower if thats makes scence... Also it has a new "attack", it rams down to a direction in stright line until it collides with any surface.
I tryed Nightmare and for the most part seems "easy" until you get swarmed by the respawns. And you will not be killed by the swarm, since you will be stocked of ammo, you will not pass for certain areas infested by creatures and soldiers AND kitting Smoky... It was franctic but cheap.
I would suggest to check the HP of enemies and damage from weapons.
I will add more stuff later today.