Visible crew/equipment: In the "Battle of Carthage" in the Colosseum, one of the chariots is turned over. Once the dust settles you can see a gas cylinder in the back of the chariot. (01:22:55)
Visible crew/equipment: In the final battle scene where Benjamin is fighting Tavington one-on-one, the camera angle widens and shows the whole battle scene. In the bottom right corner, you can see another camera filming the action.
Visible crew/equipment: Just as the SS-33 sets off we see the crew on board say "all ahead two thirds". As they say this the camera moves behind a ladder resulting in a camera shadow on the ladder. (00:20:50)