This game is insipired by Emergency, so its an RTS, not like GTA at all
Actually, the game will combine Emergency 4 and GTA elements.
So imagine being in Emergency 4 RTS view, checking your units, and a situation comes up, you flash into a chosen police officer and respond to it like you would in GTA, driving shooting etc. And while all that is happening, you can just switch back to RTS mode, and AI will take your character over.
We will be releasing a short gameplay video on the 28th, so keep a lookout if you are interested.
(Source: I'm the lead programmer of the game)