Only 2 man can give answer, Mr.Smith and Kukuruz

Kubel at 6 min, luchs at 8 min.
Posts: 2635 | Subs: 4
Permanently BannedPosts: 2636 | Subs: 17
Posts: 2635 | Subs: 4
Permanently BannedThat's normal, intended behaviour, and it's the same for all vehicles.
Vehicles can still get weapon/etc criticals instead of dying. However, this only happens if the vehicle's health was already above 5%.