You people really need to stop treating Venom like he is a real character, he isn't, Venom is YOU. That is why he doesn't talk much or actually make many decisions, he is the player's avatar inserted into the MG universe. What Venom feels at any given moment is whatever you feel at that moment.
Again, I believe the avatar-esque nature of Venom Snake was incompetently handled from a seasoned designer. Valve Corporation beats that "silent protagonist" drum louder than anyone else and it has always been a severe handicap for story-driven projects in my eyes, like
Half-Life and
Portal, as it halts any character-building banter that could've occurred with other cast members. I still enjoy those titles and accept them; however, we're ultimately stuck with Venom Snake who does express his own thoughts and actions outside of the player's control. If he was merely meant to be a vessel to my own volition, how come my desire to pull the trigger on Skull Face isn't accepted as a valid choice? Why couldn't I willingly shatter the ashes of generic soldiers to the heartless sea? Those are several instances where I believe player input should've been factored, especially for those that desired to make him into the "oni" referenced upon the pre-release trailers. Since avatar or silent protagonists are supposed to severe as "blank canvases" for developers, I believe it's a lazy scapegoat that avoids injecting a bloodly personality behind a "three-dimensional" figure since it would be "stepping on the toes" of players. We're tasking with having to do their job and, thus, we have to splash own feelings onto an empty shell and the game returns the favor by never recognizing that in end. The doppelganger twist was nothing more than an excuse to tack on customization features from
MGO3 and an awful attempt to recreate the meta-commentary, player reveal explored effectively with Raiden (
MGS2).
About BB and FOXHOUND... Doesn't Ocelot tell BB to change his face before he rides off in his motorcycle? I know he looks "normal" again by the time of MGS4, but then again he was revived and rebuilt using parts grafted from Solidus. Is it possible that BB completely changed his appearance in the way Ocelot suggested after he rode off on his motorcycle, and thus the people at FOXHOUND didn't recognize him?
I believe Ocelot was simply making a suggestion at the time since Big Boss was heading underground. Since he was supposedly building his own nation elsewhere while Diamond Dogs screwed around on center stage, I'm sure the legendary soldier exploited his status while recruiting other mercenaries albeit on a smaller scale. Getting his own facial surgery or life-like mask would probably be out of his immediate access if it didn't happen prior to his escape anyway. Additionally, official artwork primarily acknowledges his "trench coat" from his time at FOXHOUND onward. I'm actually a little surprised we never saw Yoji Shinkawa illustrations depicting him in his merc suits for Outer Heaven (Venom) and Zanzibar Land. In the end, the conversation piece was just a dull fourth-wall wink similar to Raiden looking at the player's dog-tag in
MGS2: Sons of Liberty.