Select "Help + Options" at the main menu. Select "Unlock Code", the enter one of the following case-sensitive codes to activate the corresponding weapon tag to use through the "Armory Weapon Customization" option:
NOTE 1: This tag results in a health recharge rate boost. NOTE 2: This tag slightly improves the recharge on your HRV.
While playing the online mode "Retrevial", you can't run when the vial is picked up. However, if you sprint before you pick it up, you may continue sprinting until your sprint is depleted. You will then revert back to walking.