Profile of miragefla

That is proper design. An anti-tank gun must not be threatened by a tank. A machine gun must not be threatened by a headlong rush directly into its cone. This has nothing to do with support or lack of support (especially since supporting does nothing in CoH2 because of the percent-chance-of-hitting mechanics making it impossible to reliably whittle down enemy units that are focusing on doing something else).

You are playing the wrong game as anti-tank guns are also infantry. Tanks are also meant to kill infantry and are much costlier than ATGs. Same as infantry firearms vs team weapon crews. Game of soft counters. Don't want an MG to be threatened by infantry, scout and utilize its 45 range vs the 35 range of rifles. ATGs also outrange the majority of the vehicles in the game.

I think for the Commmander System for Company of Heroes 3, it should be customisable, but also contain limits and balances. I've created a set of handy images below that I likely plan to make a video of.

Rather than simply selecting one commander, you automatically go into game with your full roster of three. These commanders cannot be switched in-game, all of that is done pre-game and is visible for your opponent to see in-game and in the loading/set-up screen. Any commander can be slotted out for another with each one having a unique set of abilities.

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Players would gain Command Points as they fight, tech, build which they can use to spend on their Commander trees in any order. You can either choose to save points to buy a higher costing choice or choose to buy multiple cheaper options.

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Players would have a maximum amount of Command Points that they can gain that, once again, can be spent in any format; this is under the assumption vehicles and infantry would no longer be call-ins or call-in units in require tech. You can choose lots of small items that accumulate, or higher CP requirement items if you want to focus on end game, or you could just balance everything out.
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Yes, it might be a balancing nightmare, but you get freedom of choice and if done right, there is no set-in-stone way to pick commander and every commander brings something unique. And going for just pure end game or just lots of minor options, means you're sacrificing other assests. It also reduces commander redundancy as now you only need one commander with say a Tiger or ISU, rather than 3-4.

Note I'd also be open to the idea that it could be linear and you can pick from any tree, but once selected you lock out everything else in that row, horizontally.

Nah, that's only the crew having inherently 1.25 size. When you crew you skipped that part (that's why reinforcing is cheaper when doing so with the original crew).

ALL MGs sucks against several late game vet 3 infantry with/without upgrades when running through yellow cover (craters). It's like it's 2015 all over again if we discussed this thing. MG's don't counter blobs on their own, if they don't have anything to screen for them cause they get focus fired. Even if a unit is suppressed, have enough of them and they will kill whatever is in front (suppression is like cutting down to 25% the DPS)

The penalty is much higher. Suppression makes your damage output near negligible.

Suppressed:
-75% accuracy
+400% increase on reload times
+400% Cooldown

Vs blobs, you really need to screen HMGs with something and you need them to start shooting at range 45, not range 35.

Changelog for 2.0 since it was not posted

General changes

Airplane loiters

-Standardized loiter duration (60 secs) and radius (50)

Soviets

ML-20

-Near AoE damage reduced from 1 to 0.9

KV1

-hitpoints reverted from 960 to 800
-Now has a received damage modifier of 0.8

Wehrmacht

G43 upgrade (Stormtroopers only)

-Stormtrooper G43 upgrade reverted to 2xG43’s (does not affect Panzergrenadiers)

OKW

Squad XP Value
To normalise the XP value for OKW squads (i.e,. How much XP enemy units gain from attacking OKW squads), the OKW units that have had their performance adjusted no longer award additional veterancy when transitioning from Veterancy 4 to Veterancy 5.

Luchs

-Build time increased from 40 seconds to 85 seconds

Command Panther

-Now requires 12 CP

Bugfixes/QoL
-Fixed an issue where Command Panther/Pershing would award less experience than implied by their call-in costs
-Prevented players from using Artillery Officer victor target when no candidate units are on the field
-Fixed an issue where several squads would experience random delays when throwing their grenades (mostly affects SMG troops, e.g., panzergrenadiers). Credits go to Widerstreit for finding the fix

I tried to use SU sniper to shoot the crew of flak emplacement. It seems the sniper missed all( 5 bullets)

You can't shoot the crew out with small-arms. The 20mm flak cannon itself has higher target priority.