This update introduced the damage system, which is still how it is done in the latest version. When a round hits an armour plate, and pierces, it then deals damage to anything behind that armour plate.
The video demonstrates, in this instance, that there are two “critical zones” that can be hit on the turret;
- The Core; this simply disabled the turret, and it can be repaired
- The Ammunition; if ignited, this explodes, destroying the turret.
Parabellum 