Say that there is a new generation of manpads that has autotargeting capabilities with built in nose IR tracker that can see a jet up to 40kms away and that can distinguish beetwen plane and flare but doesnt have IFF, and it flies at mach 5 and it has a range of 50kms so infantry can just shoot it in the direction the bomb came from and it will pick of the plane for them.
And that the enemy has given this a lot of their forces.
How should one around planing air operation in said zone?

I deploy the anti manpad countermeasures that shoot down manlads because theres equal research into countering new tech.