Deadeye Trophy in Wolfenstein: Cyberpilot
Destroy all Zeppelins in the Zitadelle mission.
How to unlock Deadeye
This is done in the 3rd mission. There are 6 Zeppelins in the mission so keep your eyes to the sky, they are hard to miss. When you see a Zeppelin, shoot a couple of rockets at it to destroy it. The first area and the second open area have most of the Zeppelins if you are having trouble with this for some reason.