Halo 5 has had the highest monthly active players for a Halo title since Halo 3 (Before the free play period)

[Veknoid_Outcast]

Makes sense given the free-to-play days, which was an awesome gesture on Microsoft's part. I jumped back in after returning my copy a while ago. The campaign is still pretty rough, but arena multiplayer is improved over 4, and Warzone is like a more digestible version of Battlefield.