The philosophy of the balance patches tends to be rebalance rather than redesign, so I settled on swapping the tech costs around.
- Lieutenant: 200 MP 50 FU -> 260 MP 35 FU
- Captain: 200 MP 60 FU -> 260 MP 45 FU
- Major: 240 MP 120 FU -> 180 MP 135 FU
- Grenade Unlock: 150 MP 25 FU -> 150 MP, 15 FU
- M20 Utility Car, AAHT, Stuart -> requires Grenades, Racks, or two Officers to build
This is essentially what was done with Ostheer in DBP: shift the teching costs around to make the tech fork less painful. The total fuel cost to unlock any vehicle is completely unchanged: it'll cost at least 170 fuel to unlock Major, 50 FU to unlock the Lieutenant vehicles and 60 FU to unlock the Stuart.
However, this opens up a lot of options for USF builds.
You don't have to build 3x Riflemen, opening up lots of other build options.
With Lieutenant costing 35 FU rather than 50, you're no longer forced into a three Riflemen build. Lieutenant costs more manpower, but it can be your third unit rather than your fourth. You get a powerful Thompson/BAR infantry squad that can help repel OKW rushes sooner.
With the Officer out as your third unit, you've suddenly got another tier to play with buildwise.
- You still have the option to build another Rifleman squad, but you could also build a .50 cal.
- After your first officer you've probably unlocked 1CP, so you could go Pathfinders or the new Cavalry Rifles instead. If you haven't unlocked 1CP by then, you can afford to wait: you've got lots of other useful things to build in the meantime now.
- You could hold out for elite infantry like Rangers and Paratroopers.
- Or you could just stick with a 3x mainline infantry build like most Ostheer builds, focusing on support weapons instead.
Double Teching is a more viable option.
Firstly, it's cheaper: it'll cost you 80 fuel rather than 110: a 30 FU discount. That may sound like a lot compared to Soviet double teching, but remember USF's manpower cost for teching is offset by the squad they get for it.
Secondly, it doesn't lumber you with a 5x mainline infantry build: remember with the faster Lieutenant you don't need to build 3x Riflemen. The Captain could easily be your fourth infantry squad.