Tbh from my experience they are still 100% worth the investment
I'm removing Heavy Cavalry Company from my top 3 USF commander roster for the first time since 2017 when I bought this game.
You no longer have an effective heavy tank with that commander and are left with only Rangers, call in smoke, Riflemen field defenses and Combined Arms. Rangers as an elite anti-infantry unit are pretty meh, they come late, aren't effective without their expensive Thompson upgrade, and are pretty easily countered. Paratroopers are a much better infantry unit than Rangers. However, since I will no longer be building Pershings it might be good to replace the Pershing with two sqauds of triple bazooka Ranger sqauds. That might be a effective AT solution without the punishing fuel costs that buying a Pershing would incur.