Vault Weapons & Progression
I think the title says most of it. Why do vault weapons have no progression paths? I really like the concept of weapons returning to the game. One main advantage is that you don't need to invent a new weapon and can easily use existing material to add new toys for us players, including fitting attachments. Now my question is: Why do vault weapons have no progression? The mastery system still exists and I am pretty sure that you could easily add progression paths which do unlock all stuff you should have unlocked on your mastery level automatically.
Battlefield 2042 is a really good battlefield game, all the last patches are so wonderful and the addition of "old-school" weapons is great - Still a game like this needs as much content as possible to keep it's players entertained and needs to give them stuff to do, even if it is just grinding a new weapon to unlock all attachments.
To add on this I find it is actually reducing the amount of fun I could have on progressing through the game (as I have just picked that game up a week ago) and have not yet unlocked everything as the vault weapons are much easier to unlock then actually leveling one specific weapon to get all the attachments you want. I just pick a vault weapon that sounds good and unlock it within a few games, then I got a good weapon with all available attachments for free.
In my opinion, not including a progression path to unlock the attachments for vault weapons (even if it isn't that much) is just a bit of wasted potential.