User blog comment:IceFireWarden0/Speculations for Season 11/@comment-10990964-20130725182639/@comment-4616231-20130726022216

Also, I recall discussing this before, about how there was a discrepancy between wether or not they were on a Ringworld or a Planet, seeing as everyone can just drive/walk to Sidewinder which we established was a seperate planet, which was even more clearly seen in Season 10.

http://rvb.wikia.com/wiki/User_blog:TheMegaShyGuy/Halo_4_RvB_Easter_Eggs