Weapons etc stuck on default multiplayer

i Can change everything in the main menu and then it wont during gameplay, i have tried making the server normal, hardcore, my preset etc but nothing works.

Can you post the link to your soldier on Battlelog so we can look at your unlocks to see if you've been reset or if it's a tech problem?  Is your rank the same as when you last played with all of your weapons or is it lower?

The rank is the same all the weapons are unlocked in main menu on the game and on battlelog, it's only when i go into a match they won't change.