War at L3 just got harder for some reason

I've been attacking C3's at L3 and doing fine but, now they have way more interceptors and defense to get through. Can anyone give me some advice on this?

The c3's defenses should be no different that is found in the game's war docs. For help, check out my c3 guide on the beginner's forum. Browser search that forum for "Aries" and you can find a number of my guides there.

I did read that yesterday. The defenses of the c3,s now are 10 interceptors units and 3 helicopters units and I got my but wiped out using 100 bombers with 300 fighters.

I was able to use the 400 fighters and take small losses but now this is what happens...

Feb 28 3847. Air Force Attack Wing 'Rockton' attacks Defense Interceptor Wing Victor.
The Grand State of Suporia (the attacked country,C3WL3) reports:

Victor lost 23 interceptors.
Victor lost trucks, gasoline and military supplies.
47 soldiers were killed and 138 were wounded.
The defence was assisted by the Defense Interceptor Wing Nicolas.
The attack added 0.40 damage points. The War Index is now 62.93

Tombstone (the attacker,WL3) reports:

Rockton lost 400 fighter planes.
Rockton lost trucks, gasoline and military supplies.
The attack may have been reduced or eliminated by Anti Missile Missiles and the unit did not receive any ground support.
2917 soldiers were killed and 7117 were wounded.
The War Index remains 52.99

Feb 28 3847. Air Force Attack Wing 'Rockton' attacks Defense Interceptor Wing Victor.
The Grand State of Suporia (the attacked country,C3WL3) reports:

Victor lost 23 interceptors.
Victor lost trucks, gasoline and military supplies.
47 soldiers were killed and 138 were wounded.
The defence was assisted by the Defense Interceptor Wing Nicolas.
The attack added 0.40 damage points. The War Index is now 62.93

Tombstone (the attacker,WL3) reports:

Rockton lost 400 fighter planes.
Rockton lost trucks, gasoline and military supplies.
The attack may have been reduced or eliminated by Anti Missile Missiles and the unit did not receive any ground support.
2917 soldiers were killed and 7117 were wounded.
The War Index remains 52.99

At this point it seems the game I use to love to play has gotten too progressive

Did you try to station ground units near the target? Anti missile batteries would help in protecting your planes.

You are making an error. My guide is written very carefully and it is important to follow its direction. Deviation from it is very costly. It is very important to never directly attack an interceptor wing while there are still interceptor weapons active. You must attack the DEFENSES of an undefended target, such as a county or town, in order to face one interceptor wing at a time, instead of two. Also, what fighting level are your attack units?