Board Thread:Metal Gear Solid V/@comment-109.193.182.64-20150922080055/@comment-1971498-20151109113306

As "advanced" as Sahelanthropus looks, that's only due to Psycho Mantis actually making it function beyond its normal capabilities so yes, Rex IS still more advanced than Sahelanthropus in terms of design and functionality (nostalgia be damned and all). Even then, Sahelanthropus' agility is shown to be far less superior than what Rex was able to do during its battle against Ray in MGS4 and this is already after it was wrecked years ago during the Shadow Moses incident. The fact that Sahelanthropus even needs Psycho Mantis for it to fully utilize its capabilities shows a grand flaw and weakness in its construction unlike the more robust Rex.