Play tanks. From vanilla version this was first happen to KUMA tank (independent tank looking like leopard 2). This was random and even dont know when it happen beacuse i was using sight view. I was driving and stopped to ret of platoon join me, used time compression x4 and when my comrades wasnt showing up for minute i wanted to drive to them but it was simply impossible, tank was moving 2 km/h, just like in the deep mud. I SEE THIS IS HAPPEN SPECIALLY WHEN TANK IS STOPPED FOR LONGER TIME (1 minute) and time compress was used. try to turn out as well when stopped.