R:Rapid

D:Deployment

B:Bridge

The noise gets louder as the mountains rumble and the water splashes

The RDB comes over the river like a tank but wait it is a tank

There is no stopping it, it goes over everything now:mountains,woods and water

As the tank puts down its tracks over the water and turns the open river into a place where there is a bridge

Once it is done it retrieves the bridge and holds it again

There it goes again mountains rumble and the water splashes!!!