I mean, if 1v1 mode was all there is, then you could rework jackson easily. But do play 3v3 USF and tell me if Jackson is OP. Especially in a faction that has no access to any armoured tanks AND reliable anti-blob unit.
So basically it all boils down to "Use 2 rifles to fight one ober" and since you'll mostly be going vs 2x Obers, you'll need the 3 rifles + officer to fight them. And while the OKW player is "blobbing" 2 obers with much less micro, you're moving 4 units viable to all sorts of strikes.
Pak howi is downright useless in autofire vs blobs. Only good thing about it is the muni drain WP and vet2 HE. And that's a slow firing barrage. So again, anyone with a bit of braincells will move out of the area.
Scott is laughable vs moving blobs. Right now it's good for accurate barrage and smoke.
I usually backtech to 50cal but again, lategame elites melt it.
Teamgames will only ever be Calliope commander if you want to win. Last 5 games had 5 wins. 2 Pershing 3 Calliope. The calliope games were easy and ended with a positive K/D ratio.
Pershing games were disastrous. In each and every game, the Pershing gets replaced by dual Jacksons. Especially since most games are vs at least 2x OKW and in each and every game I see sturmtiger + KT + raketen wall. With the 3v3 map design which allows sturmtiger to camp behind sight blockers and wipe squads capturing (eg Lienne is a Godsend for STiger).
So you can screech and yell how you want a good rework of USF, but it won't happen, because USF is well balanced in 1v1 and fails miserably in teamgames. Mostly because you have a much higher density of forces, and versatility matters less and pure firepower/armour win games. You can smoke all you want and whatnot, when you'll be greeted by 2x werfers and one stuka or STiger or whatever. Eg, you could call a 3v3 "1v1 in small VP lanes" (which often turns into a pile up on the mid VP)
So you propagate the notion of USF as mobile and versatile. But in reality it's not. Except for the crews, you don't have anything substantial or unique in USF.
In teamgames, it all boils down to winning the early game with better infantry and picking a calliope commander to deal with lategame blob pushes backed by Panther dives. And even here you need to ask the ally to place mines for Panthers.
Once the Tigers and Kings roll out, no amount of E8s or whatever will help. M57 will cost you a fortune in munis to keep up and usually bleed you MP vs indirects.
You can't ask for substantial changes in a faction which lacks basic tools and need backteching. Let alone when you have a stock KT and 960hp/260 armour stock tanks in both axis factions (and even 230 armour, low profile 60 range TD in OKW)