"We’re excited to see all the amazing fan responses to the Halo 5: Guardians Game Informer cover story. The team has been working extremely hard to get us to this point, and it’s been incredibly rewarding to see all the positivity out of the gate around our focus on co-op, the introduction of Blue Team, and, of course, the return of Nathan Fillion as Buck.
I need take a moment to make an important correction on something we miscommunicated in the story. I misspoke during the interview when stating that online co-op campaign would be supported with an Xbox Live Silver account. Co-op campaign will require Xbox Live Gold to play. I want to extend my sincere apologies to our fans, and to Game Informer, for this error and any confusion it has caused.
That said, it is important to us that fans have the opportunity to play the full co-op campaign experience and we are doing this by providing a 14-day Xbox Live Gold trial with Halo 5: Guardians."