these are the full third iteration Sandbox changes:
The stun mechanic, new UI elements, and multi-use consumables performed well at Tier X. They facilitated teamwork, boosted battle dynamics, and made matches feel fairer. In Phase 3, we are testing the same scope of changes across Tiers VIII–X to see how they play out in a wider range of vehicles and affect overall gameplay.
The 2nd point on the agenda is Tier X light tanks. The main goal of their addition is to eliminate the frustrating +3 matchmaking that the class currently has. Stretching light tank branches to Tier X makes the regular +2 matchmaking possible for them, which should turn them into a standalone battle unit. The matchmaker will be able to assemble diverse teams, and faster, while light tanks will fight in a more balanced environment and have a chance to contribute to the battle outcome meaningfully.