- You can repair damaged units at the Service Center. Repairing damaged units is much cheaper than producing a new one.

- There are limited slots in the Service Center. Upgrade it to increase that capacity and heal more troops at once.

- Some Research Institute technologies help you increase the wounded troop's capacity.

- If your damaged unit number exceeds the Service Center limit, you will lose those units.

- When defending the Base, damaged units will be moved to the Service Center, and if the number of damaged units in the Service Center is limited, you will lose those units.

- To heal your damaged units, click (Service Center) and choose (Repair).

- Ensure you have fulfilled all the required resources before healing your units.