Lava NG and SNG models are from this forum https://quakeone.com/forum/quake-mod-releases/finished-works/6398-quake-mp2-doe-lava-supernailgun-type-1. Do any of you have it on your hard drive and could share it somewhere?
I can offer models from my build from “Quake Enhanced”. LNG, LSNG and lava nails models are in the folder “MD5+MDL for DoE (Rogue)”
https://www.quaddicted.com/forum/viewtopic.php?id=1017
or Authentic Model Improvements Team - BSP+MDL models:
https://github.com/NightFright2k19/quake_authmdl
Thank You @Andrew.