Profile of BlueKnight

Both units are too strong. Sturmtiger was played by Stuve in UTT2 and got to vet5. They are both excellent at getting rid of enemy AT guns and MGs. They have a bit different playstyle but both can wipe squads with a single shot. One does it from out of sight and has stupid autonade throw, the other goes in close and gives you a choice of staying and dying or going home. You can't nerf one without nerfing the other.

Its weird thinking that a Brummbar does the job of killing infantry better than a SturmTiger. I always feel bad when teammate picks a ST over any other units, feels like trolling almost.

Brummbar can't drive frontally to 2 ATGs and kill one, ST can.

My biggest problem with USF is that by the time you can deploy Paras or Rangers you already have 6 infantry squads and there is just no room. Just make them 1CP and lock the weapon upgrades behind Major or sth. If you want to have both ATG and MG you need both officers and by the time you deploy your first officer you will have 3 rifles or you will lose early engagements. This combined with starting Rear Echelons is more than enough when it comes to infantry. Guards, Schocks, Falls not only come earlier (at 2CP compared to 3CP of Paras), but are also featured in factions that don't force you to have this much inf and doctrinal units are easier to put into your build order.

BARs are expensive but that would be OK if not for the stupid focus fire = false... this is why the doctrinal LMG are so much better than BARs even for the higher cost. Right now the most efficient use of USF infantry in teamgames is via blobbing which is stupid on multiple levels.

Vet 3 Calliope is a unicorn. You can have ~50 kills with Calliope and still sit on vet2 with ~95s cooldown, while Pwerfer has ~65s cooldown at vet2. Calliope vet bonuses are just bad. You really need the indirect fire to get rid of teamweapon walls in teamgames otherwise you can't even try to get close with your vehicles, this is why Soviets are so good and why Brits used their cancer Royal Artillery doctrine or land mattress doctrine almost every game. Many 2v2 maps are too small or too narrow to present good flanking opportunities (Poltava, Rails and Metal), or if they are large maps, they usually have some other design flaws like VP and fuel next to each other on Vaux Farmlands combined with wooden fences along the road forcing your troops to retreat home over red cover. I really wish retreating infantry would jump over the fences on their way home. Also No game on Minsk Pocket lasts less than an hour as trying to capture enemy VP, one might get escorted home and wiped by enemy tanks, so it's usually 2:1 VP slow drain and all teamweapons, arty and TDs clash on the middle VP. Some factions with rocket arty and Elefant/ISU/JT are better at this kind of standoffs.

Map design has a lot to do with balance and as an example of a good map in 2v2 I like to present Fields of Winnekendonk because it has it all, long distances, short distances, sight blockers, smartly distributed cover and many many cut offs allowing you to strike different targets and making map control more sophisticated than just sitting in a corner of the map with all your forces controling both fuel and VP.

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That was a very solid first post.

So in your opinion 221 is better than M20?

I love using 221 vs Brits or USF. It has enough damage to bleed a squad enough for the infantry to be easily forced home in the next engagement. It also comes very early and I prefer the steady damage output of 221 over the bursty one of M20. Both vehicles have great utility. I don't think the 5 extra range of M20 is that good if you take a look at the long range DPS. Mobility of early game AI vehicles can be used to great effect attacking squads that have no snare at point blank range sending them home quickly, this is why I'd rather have higher damage than the 5 extra MG range. WC51 also is a better choice than M20 if you want to bleed enemy infantry, not only because of even higher range, but due to better DPS too.

It is a great feature of M20 to have a crew that can repair it, but playing as OKW with 221/223 and going mechanized doesn't feel too different (mechanized for Puma + HEAT). You don't want neither M20 nor 221/223 to be snared and the other damage can be repaired by crew or mechanized repair bots.

LT also appears to be a less appealing teching choice in 2v2+ due to ATG, Pak Howie and AAHT being locked behind CPT and if you plan to go both officers you are so full of infantry that there is no room for doctrinal inf and both officers don't have access to snare, so I prefer to go only 1 officer and it's more appealing to go CPT for me.

Going back to your question, I prefer using 221 vs allies than M20 vs axis.

Then it should also get the range and armor of the 221 but that would probably end up as nerf to the unit.

Then it should also cost as much and come as quickly as 221, but that would probably end up as a buff to a unit.