The Post-Launch Content Title update for Killing Floor 2 has 13 trophies - 13 bronze.
Collect all the items (D.A.R. Bobbleheads) on DieSector
Destroy 10 Glowing Skulls in Monster Ball
Collect all the items (Batteries) on Lockdown
Collect all the items (Batteries) on Power Core
Collect all the items (Steam Cells) on Airship
Collect all the items (Snowglobes) on Krampus Lair
Destroy 10 Snow Globes in Santa's Workshop
Unlock the Alchemist Room in Monster Ball
Collect all the items (skulls) on "Nightmare"
Collect all the items on "The Tragic Kingdom"
Collect all the items on The Descent
Collect all the items on Nuked
Collect all the volley balls on Zed Landing