Really cool but I noticed a few things.
1. He jumps like REALLY high, I don't really see any reason as to why that is, I doubt its for progression as you have rocket jumping and you can toggle running, but this makes it insanely awkward for match play. Maybe just a cvar to disable jumping would help? That or maybe replacing it with double jump idfk.
2. Infinite height explosives. Why? I understand that THINGS in the original doom had infinite height with their height values only being for map collision, but that isn't exhibited here, infinite height explosions were only a thing as a by product of infinite height. I think all multiplayer source ports have this disabled by default. Not much of an issue because most of the time in match you'll only be firing rockets at a mid texture, but still something worth noting.
3. Was originally gonna mention the lack of auto aim on the bfg tracers, but to be fair it would be a bit op with freeaim bfg, and also the fact that srb2 has no true hitscan which would make it hard to implement. However the ability to disable enemy drops would be useful for maps like sonic doom 2.
4. Ok this is like REALLY nitpicky but if you're trying to stay perfectly accurate than the super shotgun shouldnt light up the 3rd weapon indicator on the hud, since only the normal shotgun does in the original. Also on the topic of the super shotgun, the super shotgun correctly (or incorrectly I guess?) has a 7 frame muzzle flash compared to the original doom 2's 9 frame muzzle flash (although thats like REALLY fuckin nitpicky.)
To be more positive though, this mod is like really damn good. Sticks very close to the source material, has all the power ups and stuff with ACTUAL weapon progression unlike some other similar mods *cough* *cough* tails guy *cough* *cough*, has a full screen hud (which seems to be a weird mix between the old zdoom 1.2 hud, boom/eternity hud with the weapon indicators and such.) Also splitscreen support is cool, I think the coolest thing though is the fact that, looking at the code, there seems to be support for custom weapons and items. Thank you for that, you are a real one.