I know we're not officially using it yet, but I wanted to play around with zer stuff in Trenchbroom. Here's an updated version of the zer fgd from quakefgd.zip, I updated it to be based on the Quake.fgd included in trenchbroom, and added mdl names:
The weapons are weird.
weapon_nailgun with dmg 1 = chainsaw
weapon_rocketlauncher with dmg 1 = screw cannon
weapon_lightning with dmg 1 = chain lightning gun