Give me some "holy sh... did that just happen" ideas

[Feuerfalke]

In multicrewed bombers ability for crew to man other guns where applicable, if the original gunner was incapacitated or killed.

Need to reload gunners MGs where applicable.

Ability to switch to ouside view on own aircraft, even on cockpit restricted areas, as long as the plane is on the ground (e.g. to see your skin in action, or as an easy method to walk around the plane after the mission, if it is not implemented in 1st or 3rd person mode.)