why doesn't the full arsenal achievement in battlefield 4 unlock for me?

i have this problem as well its tells me that i have 100% completed this but it wont pop

Hey, Gilesy v2! This thread is kind of old. Can you please PM me detailing which achievement it is that isn't popping for you, as well as if it's for the 360 or Xbox One version of the game? Thank you!

Perhaps your game miscalculated and you are still missing something. We cannot unlock achievements for you, you may have to attempt to get the achievement once again unfortunately.

Achievements Progress if you know it is not Achievements unlocked or Gamerscore. I made thread about Achievements Progress is broken so. I explain: Compare Games and Recent Activity show Forza Motorsport 5 - 2%, Ryse: Son of Rome - 0% and Battlefield 4 -
57%. That is when viewing Compare Games for friends and Recent Activity. Ok so when I viewing my Achievements section and show Forza Motorsport 5 - 5%, Ryse: Son of Rome - 85% and Battlefield 4 - 39%. You see what I mean now? That is Achievements Progress
is broken to me this is why. Achievements unlocked and Gamerscore is fine and they always updated to me. It is just Achievements Progress % is broken and messy up.

Weird, I had this happen to me last night as well. Unlocked 4 achievements in Battlefield and it reflects the gamerscore on my console, but not on xbox.com but it does show that I unlocked the achievements. Never had it take this long to update but hopefully
it does soon.