Captain isn’t going to be the primary pick even with the Stuart places back since it only performs okay vs infantry. And people are more likely to gravitate towards the HMG for the early game for anti infantry suppression, particularly vs OKW. Any tier with the ATG, will likely be less chosen because you don’t need a 3-4 minute ATG unless your OKW facing ultra lights.
And if USF decide to turtle with fighting positions (LT?)/captain, howitzer and/MHTT how is Ostheer going to push?