For typical CAS mission without heavy bunkers, buildings, fortifications real weaponry would be 2x Vikhrs and some rocket pod - example S-8KOM.
This way you gain high speed, lighter plane and good performance.
Kh-29T is used for very heavy fortifications, buildings, ships. Using it against example Igla is nonsense in terms of realism.
But in FC I use whatever I want, so I pack 2xKh-29T, 2xVikhrs, 2xKh-25ML, 2xS-8KOM(or S-25L), ECM pods.
However mostly in real life you would pack few Vikhrs, rocket pod and MAYBE Kh-25ML in some situations.
Even not always 16 Vikhrs, as in real life you can pack 3 Vikhr missiles istead of 8.
Here you have 4x4 instead 8x8. Wish ED allowed this: