Yes, but I mean for the purpose of communicating with other NATO forces. Every U.S. Army squad would have an Alpha and Bravo fire team, so going by just Bravo would be a bad idea. Hence standard US military call signs like Viking 2-1-A ("Viking" Company, 2nd platoon, 1st squad, fire team alpha). Problem is, our characters don't really belong to a standard military company or platoon.