What if Counter-Strike® and StarCraft® had babies?
This game design, built in 6 days, attempts to answer that question. It features round-based RTS play, with objective systems, unit upgrades, and all of the other goodies of a RTS... and it features soldiers who can kneel, use various equipment, have real facings that matter, and cost points. Add in a traditional FPS feature- the endless respawn system... let an AI play it to teach the "nubs" how to eventually become "scrubs"... and there ya have it, Merc Squad in a nutshell.
That, and you can capture the Yakuza boss's daughter. C'mon... just how cool is *that*?