You sent me this ask like 2 months ago and I’ve been trying to come up with an adequate response ever since and still don’t really have one, haha.
John is way less verbal than Fred and Kelly, but is generally more friendly to outsiders than Linda (see: man who became bffs with an angry flashlight within the span of like, a day). He also seems to view the S-IVs as actual Spartans, so he probably wouldn’t have a lot of trouble accepting the Gammas, though their condition might make him wary.
I still have no clue about Veta though, lol. John’s track record of friends is kind of a mess with no discernible pattern, including a space lizard who has killed over a billion people, so Veta’s VIVA LA REVOLUCION act would probably faze him less than the rest of blue team.
So in closing – they’d probably be chill? Her dynamic with Blue Team would definitely change, since her tete-a-tete thing with Fred would be put on the backburner once he’s no longer Blue Leader. Fred and John would definitely bond over how irritating civilian contractors can be, though. Even if the former wants to smooch said contractor.