Finally finished it.
Wow. Big. Really big. And dark. Really dark. I think the highest area light level I found was 144. Thank God for the Computer Map and glowing arrows. I was starting to feel like I was in the Winchester Mystery House in San Jose. Sarah Winchester kept building and building, adding on to the house for 38 years until the day she died. It has stairs that lead nowhere and doors that open into walls. This level isn't that bad, maybe more like 'The Incredible Machine', but I certainly felt that there were 2 or 3 levels worth of level in this level. Two Spiderbosses and six Cyberdemons? Wow again. The 'chutes and ladders' stairs area to the south could be a level by itself. With a few modifications, it might be an interesting deathmatch level.
I kept checking the automap to see how many more keyed doors I had left to open. This map is borderline almost too big and too complex. Towards the end I was feeling like "Please let me find the exit." Although that could be because I was trying to test/find everything. The arrows helped a lot. Speaking of glowing arrows, the first glowing arrow at the beginning points to a miniature of 'The Citadel' and the teleport takes you there. When I got there, I noticed the front door was flickering. I realized that the miniature had not had a flickering front door. I kind of wished it had. Kind of like the opening of 'Young Frankenstein' with a dark castle and one lit window. Kind of a small, wooden, barely able to be seen, flickering area that could pass for a door. Kind of like this.
I had to clip to take this shot. The flickering doesn't show up well from a distance. It can be seen from the start arrow and from here
If you zoom in you can see it just above the crosshair. Just a thought.
Not an error, just a curiosity. Before I even got to the first combat, the automap said I already had 33 kills. I assume there was a game mechanics reason for this (maybe deathmatch?). Odd.
So I finished the map with two Yellow Skull Keys. Yes, two Yellow Keys. And I got them both legally. There's a spot where a Rad Suit gets you to an Invulnerability, then an almost immediate rocket jump up a lava fall step, then a lot of running through lava, and you get to the second Yellow Key and another Invulnerability. I'm not sure why a second Yellow Key was needed. The first one was not impossible to get. Oh, and on the way to the second key, there is a deathtrap in a side area that the author felt you couldn't get to legally. You can.
Three kills short of 100%. There's a Barons/Hell Knight area next to teleport linedef tag 199. They're set to activate when they hear combat in sector 1798, sector tag 95. The problem is, they're all deaf.
So there are technically four exits to this map, only one of which is available to single player, but two ways to get to that exit. One exit line is tagged impassable and used as a false exit, and the other two are multi-player only. Before I exited, I clipped and hit the switch to check out the multiplayer exit area to the east of the single player exit. Cool use of the Demon face. But I didn't see how to get there legally. I didn't see any deathmatch starts or player teleport spots in that area and I know the walls don't fall. Was this area started and then abandoned?
So, for a map this size, only one real error and a couple of odd things. All things considered, cool map. I liked it.