Collision model of big rocks is broken. I often get huge loads of damage when I try to slowly pass over them or when I go through narrow path next to rocks.

It's second map in Kola, but I had similar problems on similar looking rocks all over the map but this one was extreme.

Truck drives smoothly over the rock, with only wheels touching it but still I often get huge loads of damage without any logical reason other than the collision model is broken. The truck was fully repaired, maybe a few single digit dents to suspension but driving slowly and carefully over this rock and bam, suddenly suspension completely down, half tank HP away and one wheel completely broken.