Yeah, should be a rather simple feature but would be nice for aiming with tanks without mods and such.
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You can give it 0-3 votes. More votes probably makes it easier for the devs to see.

The camera should have a max zoom limit that is editable using xml and an input you can change, activation group inputs would zoom in to the set max instantly and things like vtol it zooms in 90% of the way if you move the slider 90% of the way etc....