ah, Richard Wiles, known for his gameplay-oriented style in wads like Crusades and Slayer. this one is considerably more open and as a result easier, but it still has its fun moments. the beginning for instance, heading all the way down the hall and collecting a yellow key just for imps to show up behind. pretty neat. the other keys are pretty easy though there's some weird design decisions going on here. the northern end of the map is quite open, with a bit of back-and-forth with raising bridges to the center, then fighting a cyberdemon and other monsters before shooting a core. that's basically the walkthrough for this mostly above average level. pretty decent, but not entirely memorable.
The map feels interesting, fresh and new in the beginning, with you feeling like a part of a grand army assault under oppressive enemy fire. Unfortunately it's not long before your comrades are all dead, you find yourself all alone against an entire army, and tedium sets in. The map is RIDICULOUSLY difficult; I'm not kidding when I say you're likely to die every few seconds and need to reload over and over and over again (especially due to these damn machine-gun emplacements), which ceases to be fun real quick.