AI in tracked vehicles will do side to side turns while reversing during certain pathfindings.
On flat ground, it comes to stop and resume moving normally, however on slopes the vehicle will start rolling backwards faster uncontrolled until it collides with an object that stops it.
This problem is particular severe in hilly maps like Stratis.
Also observed by other forums users.
https://forums.bohemia.net/forums/topic/231757-ai-tanks-rolling-backwards-during-pathfinding/