Thanks for the answer, thought it was random, but sounds more logical this way ?

I don't know if this is answerable, but I just came back from a year long break, and hit a guy 3 times in a row for 0 damage. I get this new 0 damage mechanic since it happens frequently with my other turrets, but really? Who even thought of this? It's just unnecessary and frustrating, especially when that clean hit you delivered to your opponent, and was supposed to mean the difference between a win or a loss, deals 0 damage. Are they trying to be realistic and copy war-thunder? Yeah you hit em but it didn't hit the engine or something like that? Or is it just happening to me, because everybody seems to deliver full damage to my hull.