I mentioned this in another thread, but to solve this dilemma between shotgun <-> assault rifle, I figured that maybe, the AR variant would still house a shotgun firemode in it. Since they use the same ammunition, it could be plausible.
That way you get both AR and SG.
Or you just never upgrade to AR.
... or buy a shotgun as backup.
That way you get both AR and SG.
Or you just never upgrade to AR.
... or buy a shotgun as backup.