Allied forces need to send a radio signal to call for reinforcements.
Unfortunately, the only radio transmitter hight enough to clear the surrounding mountains is inside a nearby Axis-held castle.
Retrieve the radio codes booklet and send a message from the radio transmitter using the radio codes.
Build the outpost bridge.
Secure the village tam tower.
Break into the outpost supply room and retrieve the radio codes.
Destroy the lower access door to gain entry to the outpost engine room.
Build the castle bridge.
Destroy the castle basement door.
Transmit the message.