Beaufighter: why isn't the rear observer position usable?

[TheDawg]

as mentioned, in full tick servers, it would be nice to stab the C key and take a quick look if nothing else. I see AI gunners start peeling the MG's around long before they touch off a round. I've used that to keep my eye to the sky-
As often as Ivan winds up screaming at me from the back seat of the IL2, why not some cockney dude yelling something about an intruder-