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: When they are first reporting to the dockyard in the beginning, right after being waved through the gate, there are servicemen working on the ships. In one of the shots, a serviceman making sparks with a grinder for effect is wearing a white Adidas shoe on his left foot, with the logo fully visible on the heel. This is in the BluRay edition. (00:13:17)