Wow that is quite a bit of work you put into there. It is a lot more visual that way. Thanks for doing that!
I personally wouldn't nerf the AI of Panther put I do think Comet could get a small AI buff that is not depended on the use of WP or grenade which cost munition and micro each time you use it. Obviously this gets worse in bigger games with multiple units where the AI value of Comet is bound to your micro skills in the outcome. Something like a MG upgrade for munition (you pay only once of course) or a small AOE buff that brings it main gun AI performance closer to PZIV/T34 for example. This would reflect the 18 population a lot better.
thanks a lot!
with respect to the main gun AI, you'd probably be surprised that the Comet's gun is pretty much on par with that of other generalist mediums, if not even better. it has lower scatter and deals quite a bit more AoE damage per shot than, for example, the Pz.IV-H's 75 mm cannon (even after the last patch), although the OHK radius is a bit smaller. so it kills a bit less on average with the first shot, but overtakes the main gun of the Pz.IV after a couple more shots fired, in particular vs clumped squads.
the reason why the Pz.IV seems to perform better overall is that it has more MG DPS, but that advantage shrinks quickly against targets with low received acc. only vs squads in heavy cover the Comet is strictly inferior, since there the AoE(n) distance and damage of 0 and 120, respectively, make it take ages to kill anything in comparison with other mediums.
therefore i'm not sure if more main gun AI would be a good choice for the Comet, as that might make it too efficient at wiping squads in the late game. a slight buff to its MGs would be better imho, although i'd refrain from increasing accuracy and buff damage per bullet instead. otherwise the Comet would easily be able to mow down low-HP models weakened by WP shell damage with impunity.