Re: 343i hates mix-and-match confirmed.
this is a reach(haha get it) the comment from holmes is in regard to the attachments of reach i.e this

"bits and bobbles" stuff attached onto the base helmet or the accessories strapped to the arms and one leg. the style of reach was besides helmets,shoulders and knee caps was to put things on top of the base chest,legs and arms. so basically reading into this/general consensus of people posting after him(minus the argument about flood skins) that what he said was halo 5 is not in Halo:reach's style but instead at the very least halo 4s