Wow this sounds awesome, bring it on! Be cool if you create your criminal and support partner.The "criminals" in this world are those who have committed the crime of simply being alive. Sounds like population control to me. These criminals are then forced into manual labor to reduce their own sentences - they're turned into "volunteers" for the battlefield, where they have to help to capture citizens who are presumably trying to escape. By doing so they hope to gain their own freedom.
Looking through the site, it sounds like the game designed entirely to be a semi-massive multiplayer action game. Everyone plays as a criminal, and there is a support partner who does surveillance for you. Then you form into teams to complete objectives which aims to decrease your sentence, but some of these might involve fighting other teams who are working against you.