The Service Depot, or repair bay/facility, is a circular or octagonal platform where vehicles are repaired. There is a small fee to the commander for the repair process. During Second World War it also reloaded anti-tank and Anti-personnel minelayers. It also provided necessary parts needed to build MCVs. Its open design which allowed vehicles to drive on and off of it allowing it to quickly repair vehicle after vehicle without delay. Units with a gun turret may engage nearby enemies while being repaired.
The Allies and Soviets have used the upgrade version of them during both great wars, although in Third World War the Allies usually only needed them for building MCVs because an Engineer in an IFV could perform the same function, though it was sometimes used as a back up in case all IFVs were destroyed (as they had poor armor). During Third World War they also were designed to remove and destroy Terror Drones from vehicles.
During War of the Three Powers, the service depot was not used as its role was filled by repair drones found at certain production facilities of all the major factions.