I've noticed one anomoly that occurs with the Leo 2A4 turret damage model. It seems that I get a "main turret" damage result with a first round hit way too often which essentially puts the tank out of commission. I remember from SB that the Leo turret was capable of absorbing a lot more damage before being put completely out of commission ie first stabilization, then the GPS, then the TIS, then the hydraulics etc. I can't speak for the the M1 or the other other Leo variants because I usuallly don't play those.