• We have updated our Community Code of Conduct. Please read through the new rules for the forum that are an integral part of Paradox Interactive’s User Agreement.
I belive u need all of the Pre-War fighters/CAS/TAC/and STR but im not to sure, ive only play as canada (messed up b/c i didnt use CORE2-1936, i use the 1936 regular one) but am restarting soon as canada.
 
baylox said:
You need one type of fighter and a CAS model of same "generation" for CAGs. Night Fighters and Ground Attack Fighters require either Escort Fighters or Air Superiority ones, in addition to other research. Diversify! :)

Do you mean you need to research both fighter and CAS eachtime you want to research CAG? i.e. you need to research f & CAS 3 for CAG 3, f & CAS4 for CAG 4 etc
 
Spangler said:
Do you mean you need to research both fighter and CAS eachtime you want to research CAG? i.e. you need to research f & CAS 3 for CAG 3, f & CAS4 for CAG 4 etc
That's correct.

A Carrier Air Group consists of fighter and bomber aircraft, so both those components are needed (you'll notice how CAGs are quicker to research than these base aircraft - basically that represents carrier operation adjustments for the aircraft researched).