One ring to rule them all

Isengard\'s Warg Sentry are disabled. If you are not in the RING.. you constantly lose money. This is not a pretty map, but it is very unique.
In order to earn money and KEEP your money, you must at all times have someone in the RING. (In the center of the map). Also, once you enter the ring, your ability to build defensive Towers and/or