Combine Heavy Door



Combine Heavy Doors can be found anywhere in the Citadel or Nova Prospekt, and correspond with a command panel or a standard Combine lock. It is unknown what sort of mechanical device transports such a large piece of equipment, but it is known that Combine doors are generally guarding something important like an elevator or pod access points. Although the Combine doors can usually only be opened by Overwatch soldiers, Alyx can open them with her EMP tool, and Barney can open some using command panels. Furthermore, heavy doors can activate alarms depending on their importance, like the Nova Prospekt Restrictors.