Aside from black mountain and Jacobstown are there any other Super mutant hang outs - I miss them

There's a cave on the east side of Black Mountain (go there from Helios One/Old Lady Gibson) and there's a small camp to the north east of the map (By the giant crater filled with centaurs.
Then there's of course the super mutants by the hills to the east of Ivanpah Dry Lake/Ivanpah Race Track. (Also south of Prospectors Den.)

Nice! Are they iall instantly hostile? If they aren't no spoilers please - but one of my favorite parts of the game are when you help the nightkin at repconn he's awesome

As far as I know they are all KOS.

Aggh they're my favorite characters though...but if kill I must, then kill I will!

Blame Tabitha man, shouting her propaganda day and night.

When you put it that way I wish I'd of killed her when I had the chance - any idea where she goes after you reunite her with Rhonda?

They walk off into the sunset in Caesars lands I believe. :bolt:

Am I to assume they left Behemoths out as well?

Yes, It has been said its and eastcoast/bethesda thing