There are nitpicks, Iāll try to be breif with all of them (who knows maybe you have a good reason for your seemingly odd choices). I am a huge proponent for sub-faction expansions, with my favoirite horse being the Commonwealth (though Iām more on the side of keeping the British in the same faction as the US, as so far theyāre all fighting in the same battles, Italy is a different story should there be a Italian campaign in the future, they should be able to fight on both sides). There should be more discourse around the topic for sure!
With that, allow me to start, and just assume that if I didnāt bring something up that I support it:
BR I
Iām unsure how I feel about the Lee-Metford being in the tech-tree, as far as I am aware by the time of the start of WW2 it had virtually been fully replaced, only seeing some use in Australia and New Zeeland for Home Guard use (and then only until newer rifles had been procured, they didnāt even last there to the end of the war). Meaning none would ever be present in any of the current campaigns. The Enfield M1917 should not be in the TT either for similar reasons. Also rename the P14 to Rifle No. 3 for British service.
The Sten Mk I is a odd inclusion, in comparisons to the other models this one was indeed very rare (in comparison that is), personally I would prefer to replace the Mk III with the Mk I as a premium weapon and add the Mk III to the tech-tree instead (the Mk III really was way to common to be a premium weapon).
No BR I motorcycles, especially no motorcycles without the sidecar. I would be fine with driveable motorcycles with no sidecars as mapprops but otherwise I see no point in it (no way should you bring single man infantry squads into the game).
No Vickers light tanks (at least one of the later models)? Alright. I also expect the Staghound to shred infantry, might be funny, bight be horrible, I still want to see it!
BR II
Iāll take the āwhatās with the odd placement of Lee-Enfieldsā discussion in BR III.
Patchett in BR II? Iād like to hear the reasoning, not nessesarily saying itās the wrong location would just like to hear it. Iād rather see it in BR III or higher, buff the damage or recoil if you have to I feel like it is way to much of a late-war weapon to at BR II.
Sten Mk IV was a prototype weapon that never saw surice, perhaps you mean the Mk V? If so see my thoughts on the Patchett above for my exact same take on the Sten Mk V.
Cool inclusion of staff-car, rider squads should have access to jeeps and the like for future unlocks.
Matilda II in the tech-tree is a must, the Queen of the Desert canāt be a premium tank (also way to common to be a premium, it served on all fronts only the Sherman can boast the same), good call! Iād consider later versions of the Valentine, make Mk I a premium (or not at all) and add Mk III in the TT for BR II.
BR III
Alright, whatās the deal with the Lee-Enfield placements? The Jungle Carbine and the Sniper No. 1 Mk III sniper in BR II, but the rest in BR III? That makes absolutely no sense, in more ways than one. All bolt-action rifles outside of special use models (GL variants, arguably too snipers but I am not sold on that perticular idea) belong in either BR I or II. Thatās the end of the story, they donāt belong here, move them back.
If you need a regular BR III rifle then may I make some suggestions: Vickers-Pedersen (trials weapon during the inter-war period, 200 made in the UK, just a Pedersen in .303), Bang rifle (trials weapon in .303), ZH-29 (trials weapon, 5-round box version in original cartridge), SIG N33 (trials weapon, .303), Scotti model X (trials weapon, .303, one produced in the UK), White Rifle (trials weapon, in original cartridge). These however are all horrible choices for a TT rifle, I would suggest just using lend-lease Garands.
Justify the position of the Sten Mk V, Iād like to hear the reasoning for being in BR III. No 20 round Thompson belings in BR III either, and the Lachester 50 should stay event only (the Lanchester was mostly just a navy weapon, especially after mid war, the 50 round mag even more navy only).
More odd weapon placements, this time for the Bren. Theyāre all BR II, and they should all be folded together 1-3, though the Mk III should really be a event weapon or premium I feel. TT Lewis is a must however, good on you, and I would also recomend adding the BAR (Home Guard use though, however during the inter-war LMG trials the BAR was a huge favourite by testers, kinda suprising that they ended up going with the ZB-26/Bren, cool alternate history idea to have them anyway).
Cool inclusion of the 3inch mortar, and adding a BR III mortar would be the first step for more mortar options for other countries as well! Bonus points for British flamethrowers, highly understed peice of kit (and a good case for the best hand-held flamethrower of the war)
The Universal Carrier is not BR III, all motorcycles, trucks and APCs belong in BR II (unless you put a canon on it, but even them Iām impartial). Iād leave the Boys ATR as a event unlock, but make the Vickers K + Bren version tech-tree. The UC is way WAY to common to be locked behind event anyway.
Never heard of a Valentine Mk IV CS, Mk III CS? Premium or event tank in my opinion either way. M7 Priest was a artillery tank, not inside the scope of this game, Churchill Mk I should be a premium together with Churchill III and V, BR III TT Churchills should be Mk II and IV (though one might question the need for so many Churchills, choices are nice though I wonāt argue on this front). By the same logic of āchoice is goodā, more Cromwells would be welcome.
BR IV
A couple of prototype rifles for the TT? Bold move, the Howell is a crime of engineering.
50 round Thompson is a good move, but not one to be made without adjustments to other faction TTs.
100 Bren never felt like a BR V weapon anyway, Iād just like to point out that the modification that allows 100 round drums on the Bren also works on the Mk I I belive (and presumably Mk III too), why not both for choice? These versions should be without the spiderweb sights too, I hate it and there are alternatives.
The M9 is BR III though? Odd placement once more, Iād suggest the M20 for both US and UK for BR IV. Also Consider adding the M2 Mortar.
M3 Halftrack* BR II once more. Kangaroo APC are an interesting addition (which would justify a higher BR), pleace specify what model though, a āKangarooā in a WW2 sense is a Canadian vehicle type not a specific vehicle.
Odd placement for tanks now. The Mk III and IV Churchills are not BR IV material (as well as the Mk III should stay premium, not that common compared to other models), Iād suggest the Mk VII for BR IV (undergunned, but I think it would be too much of a monster in BR III to justify placing it there). Centaur IV is both more BR III and premium (probably to replace the Firefly). A Comet would be awsome though and the *Firefly really should both be moved down to BR IV as you suggested and be in the TT (another way too common vehicle to be a premium).
BR V
Rieder Automatic Rifle is another prototype, and hella ugly too.
You had a good idea with the 50 Thompson in BR IV, so justify these guysā¦? Iād say for now put all of them in BR V. No TT 100 round drums, theyāre insanely rare (Iāve yet to see compelling proof that the Soviets ever used them, let alone the British or US, the Brits prefered their 50 round Thompsons though more so than US troops).
One Vickers K gun will do, no AA sight again.
The Churchill AVRE and Crocodile should both be event tanks, neither premium or TT in my humble opinion. The Challenger should however be a premium tank. Allow me to suggest the Centurion for BR V, sources differ on if they were ever in combat but they all argree that at least 8 had arrived and been issued to crews in France by the end of the German surrender (note that means another 3 months of war with Japan, though none were ever shipped there. Still 7 more Centurions in Europe than the Super-Pershings). Another Premium BR V tank could be the Black Prince (only including it because itās my favourite tank).
My Preffered solution to a British faction
Iād keep them together with the US, allow you to choose the nationalities of the squads and soldiers you unlock, and use TT filters to seperate British and American equipment for ease of progression (bloat would otherwise be a huge problem).
Other that what I mentioned, solid ideas!