It's a good city map, had some nice simple detailing and deciption of real life places like a heliport, a pub, a pair of simple shops building and a little park.
Dark alleys surrounds the city.
The layout is open, sandbox-y and fun, search for the keys and fight against hordes of shotgunners, there's more shotgunners here than in all of Doom lol
However, cool map.
Mars War has great level design, perfect soundtracks, and is overall a fun experience. This is without a doubt my favorite megawad and I would highly recommend it to pretty much anyone (unless misaligned textures REALLY bug you)
It's insane that this was made in 1994. The level of detail, atmosphere and feeling of exploration is simply unmatched by anything from that era. And not only that, but it actually feels like a real place.
Absolutely stellar stuff; I highly recommend this to everyone, including modern players who don't typically play old stuff. You'll be blown away.