Profile of MMX

That's because as I have spoked in other thread, the site I use to check stat of the CoH2 units says vickers K has different stat than the changelog.

From the site:
Vickers K
accuracy: 67.5%/54.5%/37.5%
range: 4/16/35
...
moving accuracy: 25%
moving burst: 75%
moving cooldown: 75%

And I quote here the original author about his comment on Vickers K:
" 또, 이동사격이 가능해졌는데, 패치로그와 다르게 이동명중 보정이 25%로 매우 나빠져서, 돌격 중에는 제대로 맞추기 힘들어졌습니다. 암만 봐도 버그같다..."

Roughly translating it to
"... and fire while moving is possible now, but unlike the patch log, moving accuracy modifer is 25% which is very low, you hardly can expect them to hit anything while in move. Seems like the bug for sure..."

So the author of the site is well aware of the changelog, and he does parse the data from the in-game somehow. And saying the in-game data is differ from the changelog.

And let's be honest here. It's not the first time Lelic made a mistake like this.

Same changelog says Raid section can upgrade 1 Vickers K with 60 muni. when drops one, but they actually can't.

This is very interesting! Unfortunately, I don't speak any Korean so I can't check or use the info on the site you linked, but if the author indeed found a way to parse the current unit stats in some way that would be huge. I've tried to extract those from the game files before but haven't found any way to read or convert relics .rgd format into a readable form (there's a DoW3 .rgd converter out there but I couldn't make it work for CoH2). Do you have any info by chance on how they did this?

Anyway, if you want to exclude the effect of accuracy on the test results (as Vipper and Hannibal said above, there's also the possibility of other penalties for burst length, cooldown, etc. to apply while moving, so the much lower moving DPS might not purely be due to lower moving accuracy alone), one way to do it is to test stationary and moving DPS against a modded entity with high target size (20 or higher). That way there's no chance to miss in either case and if you get roughly the same DPS for both stationary and moving, the difference in the in-game case is purely a result of lower moving accuracy.

I, too, would not be surprised if the low moving DPS was in fact due to an oversight or typo. Wouldn't be the first time this has happened for sure.

Depending what you intend the scatter cone or area to look like, I'd recommend trying to adjust both. Angle scatter will limit the horizontal deviation, while distance scatter defines the maximum vertical spread.

You can also lower the distance scatter ratio, which, as the name suggest, affects how scatter (only in the vertical direction) grows with distance to target. The lower this value the lower the vertical scatter.

The question is why does it have it?

Short answer: animations. Fixed windup & winddown delays are required to play these properly.

This might be a bit intransparent compared to weapons with "regular" reload delay between shots, but gameplay-wise I don't see any issue. The ROF of the Jackson or Panther is balanced with windup/winddown taken into consideration (also regarding vet and ability bonuses btw). Without it these vehicles would simply have a longer reload delay, leading to the same outcome.

The AAHT is a good unit until it hits vet 2, after which it turns S tier... vs infantry, that is of course, as its AT capabilities are limited at best. Still, I don't know of any other unit that almost doubles its AI upon vetting up by one level - the only problem is and always has been getting there. But with smoke no longer gated behind vet 1 for quite a while this has become a much easier task nowadays.

The Quad may have the advantage of being able to fire on the move, but it loses over 80% of its DPS (except maybe against certain low-armor LVs such as the 222) doing so, hence I'd say this isn't really that huge of an advantage in reality.

That's some sweet graph right here. Is this based on your True Infantry DPS calc?