Duel Campaigns

We Know that in Halo 5 we will be playing as both Master Chief and Spartan Locke. But how should this be done?
Should it be like halo 2 and have one long Campaign that stitches between both character?
Or should it be Like Resident Evil 6 and have 2 different Campaigns for Locke and Chief?

Let’s face it, it’s going to be like Halo 2. You will play as one spartan, then see what the other spartan is up to and play as them. It will swap back and forth and eventually intertwine. It’s kind of like a movie such as Lord of the rings. You don’t just make a separate movie for Frodos adventure (Ironically to also destroy a ring), you have to show a little bit of story from one perspective, then a little bit from another characters perspective.