It looks nice. It's a little hard and cramped but beautiful rigged. Could have used a bit more ammo and life. I ran out of ammo even with cheats on!
I've never made a doom map before, can I do this jam?
YES
What tools do I use to make a WAD?
I recommend GZDoom Builder.
Can I use custom textures, mods, sprites?
Yes but...
Your assets must be original, and they must be made within the 72 hour time frame
