Zircon Engine Initial Alpha Release 42 (source code) file
Flame model and nailgun no longer interpolated by default (r_nolerp_list from current DarkPlaces beta). Supernailgun (progs / v_nail2.mdl) is *not* in the list. I think it looks better interpolated in DarkPlaces, you can add to it to r_nolerp_list if...
Removed Open Zircon Enginea Darkplaces Markv Project Mod For Quake Ircon Engine Initial Alpha Release 42 Source Code Evelopment Tools
Source: moddb.com