As we all know, the Aim-26 was added with the Swiss Mirage IIIS C.70, and then the Aim-4 was added with the F-106A. There are some jets in-game that used these missiles and they should receive them. I also believe that more Russian early missiles should be added like the K-5, K-8, and R-40. This could also mean that more jets are added to the game like the Su-9, Su-11, Su-15, F-101, MiG-25, F-102 and even potentially the F-4D. I think this would help sort of fill out that early missile meta and make it more interesting.
If you have an ideas for more early missiles and missile variants or new jets that should be added, please say so.