Before you even think of an answer, I would like to mention that 1) I know it's AWFUL. 2) While playimg through it a while back, I found out that some aspects are broken. Missing terminal text, monsters missing color tables (that were from M1A1 SE) that makes the game crash, and I couldn't figure out how to complete one of my own levels!
I wouldn't care if anyone tears it apart anymore. It would probably just make me laugh at how I did things back then. There's actually a whole playthrough of me playing it on my Youtube page. XD
Were there any other scenarios you played that you made comments? I vaguely remember an Eternal and Aeon thread.
I did one for Tempus Irae and Marathon Infinity as well.
I tried doing one for M1 and M2, but my commentary is based primarily around level design decisions and those games are pretty simple. Particularly M1. There isn't much to comment on, and whining about poor design decisions is kind of stupid when M1 is the first Marathon game and an early FPS game in general, and it didn't have a lot to build off of. The commentary would be pretty straightforward.
I'd probably like to comment on Evil at some point, but it wouldn't be on Total Carnage because that is a tedious and not at all fun experience. Really I should probably do Excalibur, haha.
I would love to see commentary for Evil and EMR. I never finished EMR 3.0. It looks so cool compared to the M1 and M∞ versions. At some point I hope to play it again. As for Evil, I found it to be a great scenario, but I didn't like the end.