Which units exactly would be negatively affected by a high penetration at gun? It wouldn't happen to be even bigger tanks than the p4, would it? God forbit at guns(all of them in the game) do their damned job and penetrate armor. Coh1 had shells bouncing too, but not like this. Any tank you had did not dare be on the receiving end of an at gun. Now in coh2 we have units hard countering their counter. That's not to say heavy tanks should be immediately wrecked by a 270mp weapon, but it should be good enough to at least deter the player psychologically and wreck them if they make huge mistakes(as in that video).
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Which is exactly what the 57mm does at least with the increased penetration ability. Again, you forget that 4 out of those 5 shells penetrating is the most likely outcome. And judging by the distance, the chances were actually even better. No one is going to yolo his P4 into that ATG. Even against a Tiger it should pen at least 3/5 frontally. I am not saying USF's AT design is great, because it really is not, but at least with the high penetration rounds, the 57mm is doing well. To put this into perspective: The 6 pounder (basically a clone of the PaK40), would have gotten about 3,6 penetrations in a similar situation.
Then make it an Ostheer P4, is it so bad that we prefer having a tank that has no reliable counter on USF roster except for the Jackson?
It would solve the issue for the P4 for sure, but not for the JP4 or Panther (or even Brummbar against OST for that matter). I don't think the OKW P4 by itself is really an issue since it fits the faction's design as well as the overall balance. It is just USF's shitty AT design of having no high pen unit apart from the Jackson or the option to constantly churn out munitions. USF's current design is relying on a lot of lower chance RNG rolls instead of fewer high chance ones. This can lead to the shitty RNG you got here. Your ATG could have penetrated 4 times in a row even without the high pen rounds. This scenario is about 100 times more likely than what you got in your video. Should the OKW player be able to make a post claiming that this shitty 270 MP ATG regularly wrecks his premium medium?
That's why people are saying you only got an example of bad RNG. But to be honest I'd like to detach from the example video since it does more harm than good to this discussion.
I think what would be good to clarify is what you actually want to argue about:
- Should the 75mm have higher base penetration?
- Should the ability be better?
- Should the OKW P4 have lower armor?
Again, all of these can be argued about for sure, but all of them will probably come with more changes than just changing 1 or 2 stat values in the editor. And most likely also at a price for USF, because (unlike the Jackson armor nerf), all of these changes have larger effects outside of the interaction between the 57mm and the OKW P4.