Chaos Theory takes the player in a stealth-like game setting, typical of the previous games and within it's genres. But before even starting the game, you get to select your load outs. While stealth-oriented approach dominates, there's certain times you can easily use brute force to move in and the game gives you those options. These sets of load outs, called "Kits", are one of the new mechanics within the game. A great addition, as you can choose how to approach the missions. Although a bit limited since you're still going to do more stealth, a nice addition and a way to give the player more freedom.

The actual game is played in third-person and you move around and sneak your way though the levels completing whatever objective that comes up along with some bonus, optional ones. As you play, you have several gadgets to use depending on the level and the kit you've chose. In addition, probably the most important mechanic is the visibility bar and the ambient noise bar in which lets you know how much sound is making and how much the environment is (the bars above the "SC Pistol"). Features like this makes this game superb in stealth action. Although the light bar has been present in every game, the noise bar is a new feature and  the capability of the background muffling some of the noise Fisher makes is rather particular and makes for interesting game play. Ubisoft definitely were definitely going in the right direction when making these mechanics.

Other mechanics include the AI being more advanced, now with patrolling guards capable of finding previous bodies should they not be properly hidden. In previous games, leaving an area with a enemy in well-lit areas caused alarms to off since the game scanned for it. In Chaos Theory, enemies will patrol the level/area and If they stumble upon them at any point, it will cause an alarms. Surprisingly enough , alarms triggering don't end the mission but make it much more harder.



Another major change within the game is the close quarters combat system, capable of making you choose between lethal and non-lethal approaches as well as adding a combat knife he can use to interrogate even normal guards to get information on the level itself for the player as well as making for some interesting dialogue. All in all, the game takes previous game play mechanics and idea from the past and improve on it exponentially. It is a good example of how to make a sequel to a game.




This game's features  include 10 single player missions that range from 30 minutes to hours depending on how you play and skill level. In addition comes multiplayer's campaign, adding 7 more missions with unique mission catered for the use of teamwork to complete. Returning from the previous Pandora Tomorrow is Spies vs Mercenaries in it's Vs. Mode. Here, you can select to either go head to head in death match with spies or mercenaries (which switches for a FPS viewpoint) or a game mode called "Disk Hunt" in which the objective is to collect the disks around the level and return them to the extraction point.

(However, I should note that unless you're playing on system link in co-op campaign, the likelihood of playing Spies vs Mercenaries is extremely slim)