I find that after the last update, the helicopters slide way too much in solid flat ground. Thing that haven't happened before.
If ypu turn on an heli ypu will notice the heli starts to slide and you can't make it stop, even fully turning down the trottle, like if it was on ice.
Same happens when you land, the heli will slide as if it was ice behind the wheels.
I've been flying almost a year already in arma 3, so i can assure this is a new issue.