Yeah, there's room to quibble when it comes to Warzone, but it really doesn't add up to much in my view. The most gamebreaking advantages - The Roze skin and the broken Mac-10 blueprint - were basically accidents when it was a fairly young game (< a year old), and almost all of them were freebies included in the basic battle pass (so essentially free for anyone that plays regularly). Statistical anomolies still come around and "break" the game every once in a while, but it's really reached a point where most of the main weapons are well balanced to the point that I often think I would have been best off sticking with some of the first guns I levelled up.

Most blueprints effectively just make levelling up new weapons a more pleasant experience, maybe saving you 1 - 2 hours for $20.