You are Shane Carpenter and you are part of Mental, a division of an evil corporation who seeks to dominate the world. In their attempt to control the world, they created Mental, whose only purpose is to train soldiers and send them to fight the rebels. Even if sometimes the rebels are actually the ones who are just defending their lands and homes.

To help their soldiers, Mental created the Nectar, a drug which injected into a soldier's body gives him increased combat capabilities. He will run faster, will be able to see the enemies, even if they are camouflaged and he will have better vision and better accuracy. This translates in the possibility of zooming in your enemies and an increased chance to score a critical hit, which is deadly most of the times.

Nectar also helps the soldiers in another way. They will have the feeling that they are playing a video game as the soldier won't see the blood, the enemies will disappear soon from his sight and he won't have any bad feeling when killing enemies. For them it's just like a game, but during the process people die.

The nectar is located in the soldier's suit, but the intake is located on the back of his suit, near the neck. This is why friendly fire is dangerous. As the supply of Nectar is infinite, he will have the possibility to use it whenever he needs it. There is trick though: if you take too much Nectar you will become ineffected: you will see both enemies and allies as a gray shade so you won't be able to say who's who. Your vision will get blurry and you must wait for the effect to disappear before you can fight again.

Despite their high-tech weaponry and armor, despite the fact that they can benefit from air support, Mental has fierce adversaries. The rebels are stalking the Mental soldiers, fighting back, trying to hold their territories. Until one day, when a man decided to change the balance.

As the game progresses, Shane discovers bits of truth about both rebels and Mental. He realizes that the "good fight" Mental was brainwashing them about is not what black and white and that the rebels are no more than normal people who have the will to stand against Mental soldiers and ideology.

With the help of Shane, they started to treat their opponents as equal. Mental soldiers had two major flaws. As nectar gives them a feeling of invincibility and they cannot realize that someone might try to grab their weapon. This way, the rebels could sneak right near the soldiers and grab their weapon and shoot them back. The other major flaw is the nectar, the nectar intake to be more exact. After one soldier dies, the rebels could grab their nectar intake and create some sort of grenade. When the grenade explodes near a Mental soldier, the nectar excess will create an overdose and will rend the soldier ineffective. He will start shooting randomly, most of the times his own people and at a certain point of the presentation, a Mental soldier blew his brains out because of the pain. So Nectar, the gift of gods for the soldiers could be their Achilles heel too.

As the game will only be available on PS3, Free Radical promised major improvements like the use of rumble and Sixaxis.

The multiplayer will be a very important aspect of the game and the developers insisted that a big part of their development time went into the multiplayer. You will be able to play Coop, but you will have modes like Deathmach and Team Deathmach as well.