Need reasons why? Just ask.

Coincidentally, not too long ago I was just thinking of a concept machine gun that was belt-fed with shotgun shells rather than the typical belts lol

Yeah, but these are more dangerous, especially when you consider what the Juggernaut here packs normally.

They could literally have a whole ammo pack of a shotgun shell belt strapped to their back
Not to mention they're also ridiculously durable in the first place

They indeed do. Those ammo packs can hold a lot of shells too. Not even gonna mention their armor durability as it's like trying to drive an axe through a cliff.

They can be ESPECIALLY dangerous with a semi-auto belt fed shotgun if the gauge of the shells is bigger than the typical 12 gauge
Watch as some Russian juggernaut gets their hands on one of those kinds of shotguns firing 6 GAUGE

You've just given me a very dumb idea.

God I hope it's not a belt fed, semi auto KS-23

Well, it's any gauge shotgun, but I've made a Hero Forge replicate of the Shotgunner Juggernaut.

Very nice

Speaking of juggernaut shotguns, I think I'll give Sam his own belt-fed shotgun
As if a minigun wasn't already enough

I think LMGs are more dangerous than Miniguns because you can hear the Minigun revving up, yet with an LMG, there's no audio cue for its start fire, which means anyone can pick an LMG up, sneak around behind an offensive line, and that's all she wrote.

You do have a fair point, but since Sam is in a big ass suit of armor with heavy ass footsteps, stealth should be the last thing for him to worry about
Plus IRL the m134 realistically only takes half a second to spool up fully