yes I missed that too. However, to be technical it is unknown when the BR85HB SR was manufactured. It doesn't have a canonical date attached to it as opposed to the BR55 (2525). Only that it didn't make its appearance ingame until Halo 4. That doesn't mean it wasn't made and in service prior to that. Given that there is a 27 year gap between the introduction of the BR55 and the invasion of Earth, it was entirely possible that the BR85 was in service. However I did change the weapon in my CS to avoid any more issue.