ShermansLagoon

Ok I see now. I was thinking that you couldn't use other specializations while you were ranking up the current specialization for some reason. Thanks for the reply.

So I read that you have to reach rank 50 to start using a specialization, then you rank up 1-10 for that specialization. The Pioneer specialization is that you get more exp. so you rank up faster. But if you are already at rank 50 what's the point in ranking up faster? Don't you already have everything unlocked at rank 50? (Except the specialization ranks).