This has probably been talked about elsewhere on this site, but when I fly the Me-262 (any version) in ETO all my rounds appear to be at the bottom of the gunsite not in the crosshairs. I know there was a way to adjust this in CFS2 so I assume there is an easy fix in CFS3. I'm not that good a shot to begin with so I don't need any help being bad.
This happens in other aircraft, but it's not a fault with the .XDP, there are different viewpoints at the pilot's station. F6 cycles through the viewpoints for the pilot, if there are several.