I always hate it when you hit a heli with a tank shell and the only thing that happens is sparks with no hit points. Redeemed myself last night with 3 shots, 3 hits, and 3 kills on just the one heli. Not the hardest target to hit, but three times in a row with an AP shell was pretty rare for me, at least.
https://www.youtube.com/watch?v=-WLflG_GQ4g&feature=youtu.be
https://www.youtube.com/watch?v=-WLflG_GQ4g&feature=youtu.be