Ragnars Battery Script

Ragnars Battery Script adds a Bunker Assault Ramp and a rebuildable Backdoor to the map Battery using a ETPro map script.
Changes: After Allies have built the Beach Assault Ramp for the 5th time it can only be destroyed by dynamite. Bunker Assault Ramp near the North-West MG Nest available (see the command map for location). Allies can build the Bunker Assault Ramp