A few ability swap thoughts.
USF ARMOR COMPANY
- Mark Target (replacing Elite Crews)
- Elite Crews is a difficult ability to salvage and Mark Target is a proven ability with a strong synergy with the Armor theme of the commander.
USF MECHANIZED COMPANY
- Assault Engineers (Replacing Raid Tactics)
- The WC51 and M3 are usually going to have infantry in them anyway. Personally I think being able to get Assault Engineers earlier so you can stick them in the WC51 is both more valuable and more interesting.
- Mechanized Group
- Remove 155mm Artillery from the WC51 and the Assault Engineer crew from the M3.
- 155mm Artillery (Replacing Withdraw and Refit)
The WC51 has good late game utility already. Mark Target is excellent, the WC51 is an easy trigger for Combined Arms and it's always good as a baby bazooka bus. At its 200 MP price point it doesn't need the awkward artillery ability tied to it.
Making Assault Engineers a normal call-in is a bit more flexible and less janky than having them as a crew and allows you to bring them in earlier. It also means you can stick them in the WC51 (with or without the flamer) during the window where that'd be impactful.
Mechanized usually wants to hold on to its call-in vehicles due to their good scaling: the M3 bazooka bus is a strong lategame unit and the WC51 is a dirt cheap Mark Target carrier. If people want Withdraw and Refit back it should probably replace the fairly useless P-47 Strafe in Tactical Support Company.
OKW ELITE ARMORED DOCTRINE
- Signal Relay -> Hetzer
- 280 MP 90 FU, similar stats to the StuG.
I think I've got an idea of how to carve a niche for the AT Hetzer lots of people say they want.
If it's in Elite Armored it can stick a Panzer Commander on its pintle mount, something the superior JPIV can't do. At a 90 FU rather than 140 FU price point it's also a good stopgap pick if you're trying to save for the bigger armored vehicles like the Sturmtiger call-in.
Then give it Cromwell-esque smoke shells. Mobile smoke support is something the Jadgpanzer lacks and something OKW as a whole has very little of: a highly mobile unit that can blind AT guns and MGs would make for a strong support unit in an armor themed doctrine.
Alternatively an AEC-style Treadbreaker shot would have synergy with the Sturmtiger.