The jacket is level 2, the pants are level 1. The gear level shows up next to where the item is slotted on the paperdoll. If the armor has level, the weapons probably do as well even if that's not shown. Also, the jacket has resistances to various stuff similar to the TW3 armors (just different type of damage than TW3).
There is none of that (level/various damage types with resistances) in the pnp, so that wasn't their inspiration for it.
The pnp has item rarities already, they could have used those labels. Saying that, a Kang Tao being epic, lol, they made cheap high availability weapon in 2020.
The weirdest thing though, is that they made the Kerenzikov neuralware augmentation with high humanity cost in the pnp, a temp drug in the game. I guess that's ammo for Silver Coin though…
It
doesn't have on weapons, which is my point. If they've shown it on armor, why wouldn't it be on them as well? From what was in the demo, that clearly wasn't the case, and intentionally ( or not) went through several "types".
I've played my share of Borderlands ( or Mass Effect 1), weapon itemization here looks a lot more similar to Mass Effect 3.
For armor, they're probably using something similar to Witcher upgrade armor path.
So it's an equivalent of "tier" of each type of ( protective ) gear.
But there was no " player required level".
I've no problem with that and it worked quite well…obviously here, you will need heavy protection ( and in Witcher, every set got more "bulkier", changing it's appearance significantly with every upgrade).
As for the changes, they seem fine: seems they're going for something similar to Fallout's damage type resistances, with the right weapon everything goes down fast. (Fire, Chemical, Emp and Physical...if I remember right)
And unique/boss types come with several weak points: still, compared to looter shooters like or Destiny/Anthem, it went down in less than 1/10th of time.
I don't see the complaints, compared to every shooter rpg I've played, enemies here went down faster than most. ( plus melee seems brutally effective)