Battlefield 4 DLC Assignment Unlocks Locked Ingame

Yeah, you have to re-download the map packs to re-unlock the DLC weapons you've had before they got locked because of bug. I know, sounds odd, but that's how it goes.

By the way Kush, re-installing means that you install something once again even through you already had it. It usually is done when object of re-installation doesn't work as intended (sorry if this was unnecessary, I'm not the sharpest tool in the shed at 3 AM). in case of PS3 the steps for re-downloading are:

1. Sign in
2. Go to account management 
3. then to transaction history 
4. then to download list 
5. from there you can re-download all the DLC you already purchased.

Things get tricky with PS4. Many people have issues with re-installing DLC on it. So far this method had the highest success rate:

1. Delete the game you want to install DLC for from your HDD along with everything else including saves etc (backup to a usb or the cloud)
2. Go to here: https://store.sonyentertainmentnetwork.com/#!/en-ca/download/queue 
3. Log in
4. Under the download queue find your DLC you want to install, select it and make sure your PS4 is on, it will start the download
5. The download will finish and the installation will fail (This is okay) LEAVE THIS FAILED INSTALL ON YOUR DOWNLOAD LIST!
6. Re-install the game, go back to the install list in notifications and select the failed install, it will successfully install
7. Boot game and update it.

Xbox 360:

Deleting DLC

• 1

  Navigate to the "My Xbox" tab on the Xbox 360 main menu.

• 2

  Select "System Settings."

• 3

  Select "Memory."

• 4

  Select "Hard Drive."

• 5

  Select "Games."

• 6

  Select the game and the DLC you want to delete, then select "Delete."

Re-installing DLC

• 7

  Press the silver "Guide" button on the front of your Xbox 360 controller.

• 8

  Select the "Settings" tab.

• 9

  Select "Account Management."

• 10

  Select "Download History."

  11 

  Select the game and DLC you want to re-download