I concur with a few of the people who've commented here. On one hand it's a great idea and I'd love to see it implemented, if it was only done well. I would like to see better performance with PiP before something like this is put into a gun.

That being said, the performance might be due to vehicles having multiple mirrors, and different angles for said mirrors. I also agree if it was a toggle-able setting of some sort.

I'd love to see this. VBS2 has this functionality, as well as firing regular gun from the gunner position, and walking around inside helicopters/vehicles. We need more stuff like this. Adds a lot more depth to gameplay

+1