Just listed why it does not benefit from the missiles remotely as much as you seem to think. It lacks the agility to get the missile onto an air target in the first place, especially the su 25s that the A10C is directly comparable to. The Su 25 that carries the R73 that is not the SM3 will struggle to get a target into the r73s FOV, let alone give it a good launch aspect.
9M launched in a ground game lacks a launch indicator for the foe. That is its advantage. It also does not require closure rate for efficacy as much as an R73, which we would compare it to as found on the Su 25s it is directly comparable to. The 9M is also adequate in most launch aspects, and benefits from an HMD. To a lesser extent than R73, but still benefits. The Su 25 which is its most direct competitor at 11.3 does not have an HMD to utilise r73 effectively.
Having tested the same missiles from the same launch speeds, the range for tracking is >7km. As is the Kh 29TE I directly compared it to, found on the Su 25s that are directly comparable. The A10 can also make these launch ranges, relatively comfortably. It also carries far more than the Kh 29, and far better seekers than the Kh 29 found on the su 25 at 11.3.
Congrats, it out ranges it by 3km at best, if you want to maintain a tracking launch instead of a point launch. If you want to confirm a tracking launch with the Su 25 utilising Kh 29TE, you will still generally be out ranged by SPAA at 10.3.
So by encouraging it not to be a straight upgrade over a competitor nation, and instead encouraging it to stand out in payload weight, that means I do not support it having advantages? Instead of wanting it to completely outclass a competitor, and instead suggesting it be brought in line with a platform that has some advantages whilst it retains some advantages compared, that means I don’t want it to have advantages? I get yanks are insufferable but you’re putting in a special effort here.
Su 25 is the most charitable comparison, and generally the most accurate. Especially su 25t/39. It could be compared to the M2kD-R1. Which is 11.3, carries 2 IRCCM missiles as opposed to 4 on the A10 or 2 with extra r60s on the Su 25, and carries no FnF air to ground payload, having only really speed and agility. The payload capacity of the A10, coupled with the 4 9Ms, is why it is where it is at. The most you could reasonably lower it to without stripping those missiles from it is 11.7 to be on par with the Su 25 SM3.
This Su 25 lacks payload capacity, still lacks the ability to utilise R73s effectively in a defensive role, lacks the spare R60s, and still does not have a thermal acquisition solution on parity with the A10. What it does have is better FnF AGMs, and speed.
Alternatively, we can compare it to the Gr7, which has speed and agility but worse countermeasures, significantly lower payload capacity, a far less pleasant to use thermal acquisition solution, less FnF missiles of equal quality, and a thrust output that causes the possibility of defeating IR missiles to be less than hopeful. It also only has the capacity for 2 9Ms if we are not comfortable sacrificing it’s already pathetic air to ground payload capacity. 4 (equal to the A10C) if we give up air to ground ordnance on the outer pylons. It also does not have an HMD.
11.7 is entirely sound when you consider the payload capacity and efficacy of platforms in the region it sits. The Su 25s are the most directly comparable platform, but there’s still plenty of others to suggest an 11.7 rating.