Kalran: Tales of the four nations/Armor facility

For safety and economical reasons the Navaheim always brings their vehicles with their underground freight system to the armor facility where they are stocked up on ammo and fuel, and given any last minute repairs. And, in a pinch, can return back through the tunnels. And, in order to not risk being stranded, the crew are taught how to quickly patch up any critical damage, from broken treads to busted cannon, but the limited tools means they can only do it every few minutes.