It's way beyond the "Why" stage already box, asking why won't change sqwat, it's done for MU 3-28 - 29 and 30 don't matter why
Jel -- you get caught in MU 3-28 with any atv during GOS mule, and you'll feel like a fool --look like a tool -- Calling anybody you'll get a busy signal if your not connected to the team effort by a code, for the road. You wood have to have a special number to connect -