Problem with external camera !!

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When I tell to the ai gunner to select a target in rear side of the vehicle the external camera dont stay in the direction I want they turn and turn and turn and .. on the same direction 360° and when I disable the target it work ...

But when I tell the gunner to select a target in front or in side of the vehicle all it's ok

Some one has an idea ?

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Ok I found the problem was the selection of the commander turret in the p3d wasn't correcly implemented.