I have watched many recent ARMA 3 videos (ZEUS missions that were done in Sept. 2017).
I noticed a constant AI weakness : crews of tanks or other armored vehicles, when 'cooking' (about to blow up), exit but only run a short distance away, stop, and die in the explosion. They need to run further away: simple tweak I presume. It's just very embarrassing and makes it too easy. :P
I also saw some infantry AI run towards a 'cooking' vehicle and die like a fool, but that is a different issue.