[Hitman]

Inside the real Uboats the observation periscope was raised and lowered via a lever controlled by an operator that was not the same person that looked through the instrument (The commander or IWO peering through the scope asked for rising and lowering it verbally). The lever was placed somewhere in the wall and it had a central position where it stood still, and could be driven upwards and downwards to raise/lower the scope. The left/right movement was done however by just pushing the handles by the user, no hydraulic system aided that, unlike the lowering/rasing process.