Javelin could be F&F, but there are alternate options and spike is also supposed to be F&F. The US doesn't have any other infantry ATGMs except dragon, which is garbage.
RAH-66 is an OH-1 with more stingers and a cannon, or an OH-1 with 6 hellfires and a cannon. I honestly wanted it instead of Longbow.
I consider the longbow preferable to the RAH66 on the grounds that the longbow did enter service, and as such, deserves priority over comperable helos that did not.
the US needs buffs, it needs fixing the M1 line, reroll some of the useless pattons into something halfway decent, reroll the airtab and grant the top Paladin guided munitions to offset low rof with unrivalled precision. That would make for a nice contrast as well. USSR relies on AoA, while the US relies on precision as they did IRL.
Give it standard artillery dispersion whrn firing blind and a very small dispersion when your units draw line of sight. This would diffirentiate the 109A6 from the 109A5NL, which is flatout better then it.
As for the javelin, i feel its a bit OOTF, but depending on the stats wouldn't argue heavily against it. I do feel the US infantry tab is better served with some tweaks and buffs then anything else