This was accomplished by a sophisticated character skeleton animation system, referred to as reverse Kinematics, which greatly adds to the realism of the game, and also adds a more sophisticated and flexible approach to the character design. Bungie has used this system throughout the game itself, and in doing so, has given Halo a uniqueness, and unmatched attention to detail than any other game out on the market has so far. The other race of the game that was shown at E3 is known as the alien covenant, one of a few new species said to be in the game. Because Bungie has assigned separate designers to each race, the aliens have a totally different feel to the game than the cyborg. Like the cyborg, the aliens use inverse Kinematics, which greatly add to the realism, such as the body swaying after firing a large weapon from the aftershock.
Armament is always important in an action type of game, and Halo has armaments up to it's eyeballs.
From the typical range of human death tools such as grenade launchers, flame throwers, and machine guns, to the alien's equivalent, energy based weapons of mass destruction, this looks to be shaping up to be a very violent game. Though many organizations can bemoan the state of violence in society today, games of this type are extremely popular, and this game will definitely make millions of players very, very happy. Bungie has developed a massive 3D engine for use by the game. This impressive engine allows the player to explore the entire Halo world, and to interact within that world, in a seamless environment. Your character will be able to walk on the grassy hills, ride in vehicles, engage in sea battle, and fly through the air in his quest for total domination.