The big difference between TDs of all kinds and the thing they are meant to counter is that if the TD wins, then the infantry now must win their fight as well in order to win the whole fight. If the tanks beat the TDs, then it’s pretty much game over for the infantry the TDs we’re supporting.
This is why the Jackson must always win vs tanks of all kinds in the games current state. It’s just the nature of TD play that necessitates it. If you want to have a less do-all anti-armor TD for USF then they need another TD.
Each tier of each faction is supposed to be equipped to deal with the next higher tier of their opponent, in the defensive. This is why PaK40s clobber Soviet T-34s and SU-76s can fight Panzer IVs.
Soviet and WM teching is a great place to look for how the tiers are supposed to stack.
To apply this to USF, I still say add the M10 to Captain tech. M10s then can fight the Panzer IVs is USF falls behind, but WM or OKW can counter them by either getting a heavy that cannot be easily beaten by an M10 or anything else in Captain tech, or they can switch gears and play a heavy infantry style with multiple squads of Obersoldaten that can’t be fought by the M10.
By adding the M10 to USF tech, it allows for better counterplay by all sides, incentivizes back teching to Captain (if WM spams Panzer IVs and you went LT straight to Major for example) and it allows the Jackson to be given a rebalancing in order to make it counter heavies only.
More Rock Paper Scissors gameplay for all sides and more variety of tech choices.
I know, it’s a good idea. You can thank me later. No big deal.
lol