Expected thatHalo Infiitewill receive co-op updates in August that will allow you to roam
Find out and join the programhalo insiderYou can here, but remember that participation in this program does not guarantee you participation in co-op testing. Either way, it's free, so you have nothing to lose.
The game's roadmap, published in April, pointed to the end of August as the launch of the co-op game, most likely this will happen, since343 Industriesas long as we didn't break the schedule. Online co-op will be available at launch, and split-screen co-op will be released later. Another expected addition is the modeHalo's Forge, which has yet to make it to open beta in September.
Source: PC Gamer