The electronic lock to enter SGS from the eastern caves (the one that opens the outer door) is no longer working for me.
I'm not sure if it's related in some way, but this is an earlier saved game that I'm loading due to SGS becoming hostile toward my character after killing the lone SGS guard outside the 3 level complex (where whatshisface was trying to get into a sealed door) to the NW. There weren't any cameras or other NPCs around (the other guys had long since returned to SGS). I'm not sure if this would also be considered a bug since one would expect (at least I did) the same stealth / line-of-sight mechanics that apply to the rest of the game would also apply in this particular situation, but that doesn't seem to be the case and now my saved games are unrecoverable as a result.