Hmm. When I tested this I got through the level chaingunning the last caco's and pain elemental, but maybe I should add a backback in that last area just to be sure?
Okay here's my review!
Difficulty 3.5/5: I liked the difficulty being based on strict health and very small amount of ammo so you have to be carefull and not aimlessly blow ammo away like a dumbass. The lack of monsters in the map add up to the suspense, but kinda make boring. Oh, and at the end with the caco demons after then earthquake effect, I had no ammo left and I died a bunch of times trying to chainsaw dem cacos :\
Level Design 5/5: I really liked the level design! Especially the beggining with the jumping puzzle and not to mention the nice looking 3D bridge to get into the base. And I liked how the plot revolved around the NPC marines (Which were really cool by the way) talking about the hole that formed. The part where the Arch-viles surrond you (but don't attack you, only look at you) was a nifty effect, but it made it impossible to get 100% kills, next time you try something like that, try to do it without the monsters being counted as "enemies". And good work with the ZDoom effects ;)
Replayability: 2/5: As good as the map is, I don't know if I would play this a lot like AV or Scythe, but then again this is only ONE level. But the fact that the replayability score is low, doesn't mean that it's a bad thing, just that the map was so short and all. Next time try to make the map a bit longer with more monsters
Bugs: 1. When you go into the first 'hell hole' in one of the little ponds of slime, I noticed a HOM effect even with OpenGL mode on with Skulltag.
2. The archviles make it impossible to get 100% kills but I already discusses this above :P
Overall Rating 4/5
Keep on maping, I like the way you took advantage of the ZDoom ACS and Slopes and the notable 3D bridge, and I would like to see more maps like this from you :P
I'm aware that its impossible to get 100% kills, but I couldn't find any other way to create that effect, and I suck at scripting so... :C
That HOM effect in the first Hell-part is a really strange bug, and I'm starting to think that it has something to do with the sourceport and / or video options. Sometimes I see the 'hole' (its right underneath the sloped rocks on the right side, right?) and sometimes I don't. Lately I haven't seen it though, and I even have a ATI card (GZDoom accursed enemy).
Thanks for the detailed review! I really appreciate it, because I did put quite some time into making this.
I hope I can upload it to the archive as well.