I have all the achievements except any of the Redsec exclusive stuff, and I think that is how it will always be. Screw Redsec. Not fun. Not for me. Too many cheaters in free-to-play games. And the people who aren't cheaters, are teenage sweats who I will never be able to compete with. I am old. I have no chance. All they do is harass me in voice or text chat. BF6 gave us this mode that we didn't want, and then that community made us hate it more.
90% of the achievements is good enough. I suggest you don't worry about it. I don't know if they can change the achievements on the fly.