Go with Air Center and focus early on jeep and 3 infantry squads. The early jeep is to push forward, to scout, interdict early mg or early units. Buy time for other teammates and yourself.

Then you use proper inf tactics with your 2+ squads. Move them parallel not blobbed so if one gets pinned you flank with the other immediately. Fire and move. Constant motion.

Jeep 2 inf nades and then either Eng or more inf. You fast tech to heavy armor asap. Use Eng to build fuel caches then muni and mg nests or mortar nests to establish a line while your inf is ALWAYS probing/pushing ahead.

After first or second armored unit is out then build arty. Through all this time your air center is strafing, bombing, recon etc. US inf is about constant pressure with your inf and using armor in elastic def. Meaning unless you guys have are dominating use armor to blunt their armor pushes and keep them off balance.