looks.. okay, I guess. I don't know everything about halo etc, but the line about spartans are "upgradable" seemed a little off to me.
The series also supposedly takes place in a "silver" timeline, which is similar, but different than the timeline/history of the games
“The Silver Timeline is a unique vision of the Halo universe that contains and embraces many key elements of the core canon that has spanned the last two decades,” the explainer continues, “but with relevant contextual and narrative details that diverge in ways appropriate (and necessary) to the storytelling opportunities presented by the TV medium and our collaboration with creative partners.”