Did y'all know Doom 1 & 2 has residual grenade graphics and data? It's missing the sound info, but I found it purely by accident and got it working in my DAICHBADV 1.0 gameplay mod.
Here's the decorate I wrote for the roughly finished product for the mod.
Actor Grenade1: Grenade
MISL B 6 A_Explode(60,90)
MISL CD 7
It runs completely off inherency and I had to add the sound reference. The unmodified grenade has no sound and does the explosion damage of a rocket.
I have videos linked in my post here for the gameplay demos to see it in action.viewtopic.php?f=43&t=72350