Yeah if m10 was in captain you’d either have to neuter it to hell or it’d just be hilariously op. New meta would be captain and a rushed m10 followed by another 1-3 m10s with paras or rangers and ending the game at like 12 minutes before they even have mediums, and all axis lights would be basically hardcountered.
Obviously there would be many stat changes to the M10 as well as teching price and building price adjustments. No shit just adding it to Captain tech would be OP.
Right now the M10 is more or less pointless being a doctrinal TD, tied to Major tech that is worse in pretty much every way compared to the Jackson.
A rework to make the M10 counter light vehicles and medium tanks while being tied to a lower tech (or multiple lower techs, such as building it from the Captain building but only once you’ve also bought the Lieutenant.)
This would allow the Jackson to become a TD that counters heavy tanks (high penetration and damage but a low rate of fire and long range) while the M10 has higher health, shorter range, less penetration but a higher rate of fire and better speed to allow it to out DPS a medium tank but not penetrate a heavy well enough to reliably counter it. Thus, Jackson doesn’t need to counter everything and Jackson and M10 can be counters with vehicle play if you pick the right type, without crippling US lategame.