When using the machine guns from the pilots seat in the B-26, the guns do not fire to where the crosshairs are - the bullets go to a point about 3/4 of the way to the top of the default gunsight.
When trying to strafe targets while at a low altitude, its almost suicidal because you have to point your nose way UNDER the target to even come close to hitting it.
I hope this hasn't been posted before - looked thru all 3 pages and didn't see it mentioned. If it has - never mind . . .