Very well put together map, I have nothing but praise for it.
Played in ZDoom 2.8.1, Doom (strict) compatibility mode.
The difficulty is low, but the gameplay is quick and satisfies nicely, there's nowhere that feels unnecessarily constricted, everything is free to move.
The secrets were all interesting and satisfying to find, and the last one is very reminiscent of Hangar, a nice little nod.
With the shotgun being the only available weapon, the low tier enemies to tear through compliment it very well, so there's no grind to be found.
There's noticeably more sector work here, but it feels vanilla-compatible and would slot right in with the rest of vanilla E1 rather nicely.
One very minor nitpick:
https://cdn.discordapp.com/attachments/ ... 121602.png
I personally would remove the bit of floor from the middle of the carpet there, makes the floor slightly bumpier than I feel it should be.
I very well enjoyed this and look forward to anything else you make to join it.