Using version 1.0.11 . everything set to veteran, mission -the axis
attack . ..day of the axis?
play time approx. 30 minutes.

collision set to NO ground or aerial collisions.

during 30 minutes play time . hit 3 time by axis planes.
the third time.
message 'bandits at 2 o clock'.
I turned my 'top turret' to 2 o clock .. just in time to see three 'bandits' in formation of..in a line a breast. smash into the side of my b17.
on each occasion my b17 turned and twisted downwards .. then started the slow climb back up to join the formation.

collision is still a problem in missions.