They didn't specifically call it an arena shooter in their marketing but I'd say "feels like Halo (an arena shooter)" counts for something. How is this not comparable? "Feels like Halo" and slipping in a bunch of "accessible" elements and saying "there are also other options" isn't so far off from "Feels like Halo 2" and slipping in a bunch of "accessible" elements and saying "there are also other options." Who's to say (besides 343) the picture I posted is the extent of what we'll be seeing, in terms of "accessible" mechanics?