1. How "fun" a faction is is completely subjective. Your argument is basically that brits are more fun than USF because you say so and you take your knowledge of the brits from an early alpha version.
2. Lol back then soviets were locked into 2 tiers at once max and relied on call ins. I don't see how that's any better than the current USF. US might be lacking the unit types you listed but to compensate for that they have quite a lot of interesting units and mechanics. There was a poll about peoples favorite faction the other day and US was second after wehr with significantly more votes than soviets.
3. See above, completely subjective
4. Tiger ace is fine ? Ok Do you remember the good old days when a Tiger Ace could just drive into the opponents base and destroy it in its entirety while being shot at by 10 at guns ? Also basically you're asking for historical units like hellcat or pershing do you even know what role you want them to have ingame ?
On the one hand you're discussing balance, build orders etc and you have a Senior Strategist badge and on the other hand you blame me for taking the game seriously and wanting it to be nicely balanced and well thought out instead of über tank X vs über tank y ? As soon as someone is critical towards your US bashing circle jerk you start with that "not everyone plays 1v1", "some people play for fun" sort of stuff. Guess what I play this game exclusively for fun too.
5. I can't really say anything about that because I respect relics NDA but I don't see how british are more "cool" than any other faction.
I never said that a Calliope would be OP. (wtf) I just said that more units for the other factions would make the game even harder to balance when brits come out. It's not as simple as "Calliope or Pershing will be op". I'm too lazy to go into detail now but I'm sure you know what I mean. (new units cause chain reactions, other units need to be adjusted accordingly etc)
Sorry for saltiness