Back 4 Blood: How to find the secret on 300 Below in Tunnels of Terror

In Back 4 Blood's Tunnels of Terror expansion, the Ridden Hives will test you and your team with persistent Ridden threats as you explore their tunnels for loot. It will be perilous, but if you survive, it will be well worth the effort. There's a hidden golden skull trophy to be found among the goodies. Here's where you can find it in 300 Below.

To discover the exit in 300 Below, your squad must work their way down a few floors of a cave labyrinth. The secret for this level may be found on the lowest floor, just before the elevator shaft exit. To get there, you'll have to go down a few levels. In the screenshot below, look in the opposite direction of the exit for the enormous wheel.

Go to the left side of the platform in front of the wheel once you've found it. To claim the golden skull award between the platform and the debris, crouch and interact with it to obtain the accomplishment or trophy linked with it. You can return to this one if you pass it because the trophy is on the same floor as the exit, but you may miss out on an Inner Lair entry higher up the level if you pass it.