Cortex Command is an awesome in-development game that is a cross between a third-person 2d shooter and an RTS.
So far, the game has two main modes of play: Trying to destroy the other person's brain or surviving as many swarms or enemies as possible while protecting your brain.
The game has a thriving modding community at www.datarealms.com and can also be downloaded for free at that site.
Go play Cortex Command, then you'll have your example.