Vs the OKW the .50 team is worth it.
But vs OKW you should just overwhelm them with Rifles, and go Captain to counter the inevitable Flaktrack. So, in practice, the .50 cal has no use.
.50 cal is also overpriced, and it takes too long for it to come out imo.
USF weapons team needs a real redesign soon. Especially the pack howitzer. What a bad unit.