Update 2.10b: Closed Circuit Rebreather Gear + Back-mounted operator gear

- Addition: Closed Circuit Rebreather Gear

- Addition: Gear placed on the back of the tactical vest is now available in the Backpack category

- Addition: Back-mounted tactical vest gear to official squads

- Fix: Issue in Quick Orders where available orders were not updated when switching operators

- Fix: Issue with the operator height slider

- Fix: Some AI errors