To obtain Of the Alliance title, you need to get 100000 honorable kills. To obtain Arena Master title you need to complete the following arena achievements: world wide winner, brutally dedicated, threes company 2200, hot streak, last man standing, just the two of us...
That said, you don’t have to strictly be within the recommended level range for every instance. It depends on your group, and it’s very possible you’ll get pulled into instances at levels outside of the ranges listed here. Trust your groups to hold each other up and do your best. ...