When what?
The only other missiles with IRCCM you’ll see is the Magic 2, which has exactly the same IRCCM function as R-73 with a worse flight envelop. They have a much more limited range, but also have a proxy trigger delay that means they can’t be used at point blank, and lack the thrust vectoring that makes the R-73 so scary at point blank.
Yes, if you let a F1C or 2000 F get within 1.5 km of you rear aspect, you’re in trouble, but other aspects or further ranges make the Magic 2 about as easily flared as an AIM-9L in those aspects, in my experience.
Again, you’re focusing on problems that literally every 11.0 plane faces, not things unique to the Bis.
Probaly just do bombing them everyone around that rank literally just do bombing that BR has the most unfair match in ARB
mig21s are not suited for bombing, they require all the speed in order to counter the f-5e, then reverse it. Your superiority relies on your performance, because armament wise you’re (like the f-5s) far behind the competence that gaijin placed at 0.3br below as a point laugh tactic (j35xs, kfir canard etc)