User blog comment:Rogue540/What will the weapon set-ups in mass effect 3 be for squadmates?/@comment-4301893-20111010040939

I don't think there is any proof that there will even be "permanent squadmates". Casey Hudson has made comments to the effect that all squadmates are potentially very non-permanent in the context of the war story. I can't really hazard a guess as to the weapon loadouts. I will say that Tali will more than likely have a shotgun.