I wonder which these 12 cold-war era aircrafts are except the seven listed: F-100, F-105, F-4, F-15, A-10, Hunter, AV-8.
Maybe: MiG-21, MiG-25, Su-17, Su-25... what if... nah, they couldn't... could they have modeled a Su-15?
More likely is probably the A-4.