User blog comment:LovingKate/April 8, 2013 Update/@comment-5850386-20130411033208

dang... the rewards arn't bad...

http://combatarms.nexon.net/News/View.aspx?boardNo=103&contentNo=00Fvh

Basically if you log in on 4/12-14, you get free supply cases and keys. Also, being online on combat arms on 4/13 will give you a 1 day NX-rare every hour. In addition, logging in on 4/14-16 gives you 5 5shot cases instead of one, but meh...