Got a question on my 1st Playthrough of New Vegas the Gun Runners had a major supply of weapons and I mean MAJOR selling Anti-Material Rifles,LMGs pretty much every good gun. ON my second playthrough im currently lvl 17 and ive gone to the Gun Runners but they sell horrible weapons like 10mm pistols,Caravan shotguns pretty noobish stuff is this suppose to happen or is there a way I can get them to sell beast weapons again? P.S.(Ive also noticed that the super mutants at Black Mountain are kinda the same as in my 1st playthrough they were shooting at me with LMGs now on my 2nd they were shooting Aussult Carbines Any help on these issues Please?

(SORRY IF IM POSTING IN WRONG SECTION)