short answer : there is no AF2 yet. Myth gear is AF1 (stands for AF +1)

long answer : Soldiery gear has nothing to do with myth gear. If you want to have an upgrade from your AF1 gear to get the AF2, you'll have to wait for 2.4 to come out. I also suggest that you make a suggestion for the devs to look closer at it. It seems however that AF2 will be disconnected from AF1