[Beskar Baron]

Actually, I don't think any of the weapons that are of higher tier rarity are 'p2w'.
They did use to be, however now, you need to be good in order to get them.

The crate only weapons are, on average, not worth the grind (except the val and vector):
The M24: high damage, but hindered by the EXCESSIVE zoom, the high sway, and the hip accuracy of a medieval catapult being carried by a horde of underfed slaves
The Bullshite: inferior to to the S&W in fire rate, accuracy, range, and I am pretty sure it the bullshite reloads slower, and it is only good due to its higher body shot damage, meaning people who have the accuracy of a potato (like me) will benefit from using it over the S&W more than those who can shoot
Are there any other crate-only weapons I missed?