My Scorpion is one of the first ones brought in to the US, has the Made By Luago stamp and the original FA FCG parts, (Shooters Element was wishing I'd swapped trigger groups with him for the parts), and I have no experienced any OOB firing with thousands of factory and hand loaded ammo through it so far. It doesn't mean that the firearm won't ever fail - all things made by man can and will fail eventually, but I have confidence borne by those same thousands of rounds that I don't think that will happen any time soon.
As for the Freedom Munitions stuff, I found some of it in my collected brass, and I pitched it, same as I pitch AMERC and that one I can't remember off the top of my head, the cheap Walmart brand with off center flash holes. I don't believe I have ever fired any of their ammo, so am 100% unqualified to say what the QC is like, but the members saying everyone has bad days is very true. I had a box of Wolf 7.62x39mm that had duds every third round, had CCI Blazer ammo with sideways primers, (two in one box of 50 once), and had a Winchester primer pop loose a perfect cirle out the back which succeeded being the only round to ever jam up my vz-58.
I also prefer to "roll my own" and I do my absolute best to keep eyes on every single aspect of loading for my own QC. I've pitched brass that my gunsmith buddy said was perfectly fie, but if it gives me the hinkys...well, I'd rather lose a single round of ammo than a gun I will be very hard pressed to be able to afford to replace.