I believe that the levels in multiplayer should allow you to unlock something in return for your hard work on the battfield. That's why I' wondering if there will be any unlockable vanity items for the character. As there is a option to customise your character there could also be a few more slighly different outfits. Furthermore, a level should grant you a vanity rank. For example, Level 0 - Recruit, Level 5 - Private etc. If they are planning to add those things please tell me.