Why not have an event like AVA's

http://forums.ijji.com/showthread.php?t=1191046

its like were if u play a game a day then you'll get to do the capsule shop 2000k of zp for a Christmas gun (black market) and in CF there is a stupid 30 day adv ak 47 that will get really annoying because every one will have it and after 30 days it will go away