Already at Rank 3 after two days. Yesterday was able to pull the Felwinter's. Make sure you do the bounties every single day which adds to 700 rep. Here's some math too. Ranks 3,4,5 require 2400 rep each. As of yesterday a win got your 67 with the buff it'll be even more today. So just get a group of friends and go have fun, communicate, and for gods sake capture B.