A new gametype was revealed in the French version of OXM.
The Infection gametype in Halo 4 has been renamed to "Flood". Yes, you read that right. From the screenshot provided in the article it appears that infected players will now play as a variant of a partially infected Flood Combat Form.
Flood supports up to 12 players with two playing as Alpha Zombies and the other 10 attempting to survive and not get turned. Infected players will have deadly claws for melee damage and enhanced vision.
The article also revealed that John will be able to fight in the mecha from the Halo 4 trailer.
Source: French OXM scans with translated paragraph. (Most of it is in French anyway so you won't be able to read it, unless you know French of course.)
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