Best guided missles against ground targets as in vehicles are the KH-38 MT/ML
74 KM should be good for TWS. Keep in mind that at 10k meters and R-77 can reliabliy reach a target at 30 km’s or less. Use it a medium to short ranges (do not engage in BVR with an AMRAAM carrier
Your GRB loadout will be:
2x R-77
2x R-73
6x KH-38MT (The TV seeker on it has thermals so no need for the internal targeting optics)
And if you want, a centerline guided bomb. I don’t take it because of the flight performance hit.
R-77’s are best used sub 15 km unless you’re at altitude, as their range is lackluster.