HALO 4 Overview

Halo 4 is set in 2557: four years since the Forward Unto Dawn was split into two and the finale events of Halo 3.

The Covenant return: As of right now we know in the first 10 minutes of the first mission you are fighting the Covenant. It is also made clear that the Covenant are not the primary enemy.

Requiem: The FUD crashed on the planet Requiem which is enclosed in a massive Dyson Shell. The shell is there to protect the planet from the effects from Halo.

While Chief was sleeping Cortana has chosen a new visual identity.

Chief's personality will be explored more through out the game.

All characters including Chief, and Cortana have been animated with  motion capture.

A new HUD actually makes you feel like you are wearing a helmet.

Huge environments: a piece of concept art depicts a floating air squid in a jungle setting.

The Infinity: The story carries over to Halo 4′s multiplier.

Spartan Ops: A separate story campaign for four players. New missions and cinematics will be added every week to push forward the story. Its reported that after the Halo 4′s release new missions will be added months after the release.

Firefight: Firefight will not be in the game – Spartan Ops replaced Firefight.

Multiplayer directly and in-directly ties into the Campaign.

UNSC are on a top-secret mission, and will eventually meet up with Chief.

Spartan IV’s: adult volunteers taken from the the best of special ops soldiers.

Weapons: Battle Rifle, Assault Rifle, DMR, Assault Carbine, Covenant Carbine, Shotgun, Rocket Launcher, Sniper Rifle,Plasma Pistol  and Magnum. Also a lot of new weapons have not been announced.

Spartan Points: The new currency in Halo 4. You’ll be able to buy armor abilities, armor , and much more.

Sprint is the standard armor ability. With jet pack, hologram, and camo returning.

Forerunner Vision – an ability that you can see through walls.

  Thanks to CruelLegacey Productions for this info.(This info was posted on April 11 and might have changed)