there is many different configuration u should try
1. use the best mil officer,,with skills
2.use badge
3. scout the fields a few times
you will facing ultra units...fighters, bombers...SAM(AV)..SSM(rockets)
I always use 100k rockets, 10-20K Heavy tanks(as blockers), rest is fighters
If yo dont think its enought, you can always ask your friend to UO the field with you.
Meaning he can add up same amount of troops as you.
If you win, your officer will recive about 1 million in experience, so its also a good way of training your officers.
Some like to use AV...some like to use them as blockers as it will shoot down any enemy air unit that come close to your rockets.
There are no right or wrong configuration----dont use SF, as SF is very weak for air attack
Just remember you need to fight ultra air units, and ultra bombers can reach far.
if only SAM and SSM, use rockets and Heavy tanks...but have in mind that the enemy config may change before you reach the field.
So have units that can fight air units available..like fighters