Halo 4 will contain 10 new weapons, 2 new vehicles, 10 new launch maps, with more coming in the form of DLC.
Spartan Ops mode campaign will be ‘episodic’, lasting 12 ‘incremental’ hours, with 5 missions per week, over a 10-week season. Simple, right?
Halo 4 releases on 6 May on Xbox 360.
Source: Little English Halo Blog.