Speed and facing helps halftracks stay alive
PIC 1 - The halftrack is stationary and head-on to the ATR, for a hit chance of
41%..
PIC 2 - It's still head-on but now it's moving fast, making the hit chance drop to
34%..
PIC 3 - It's now stationary presenting its side, and the hit chance rockets to
53%..
PIC 4 - Now it's moving but the hit chance is still high at
44% because it's still presenting its side..
SUMMARY - Moving makes you harder to hit, and presenting head-on makes you harder still.
(Note - Same holds true with ALL types of guns v moving targets, not just ATR's v halftracks)