Oh, yes, of course, MSOCS. You're right that all my last few posts are specifically about IR from the weapons bay because I was responding to a point about exactly that. Sorry I can't tell you which post; I can't even remember where I left my car keys let alone a post from more than a couple of days ago!
External carriage should be the same as any bomber. I think they've already done some of the carriage trials and I would expect the appropriate clearances to come at the appropriate time.
That said, my points about HOBS and LOAL still apply, it's just that (mostly) you don't need to rely on LOAL to launch from a wing or fuselage station, which (apart from stealth considerations) is a good thing.