(adsbygoogle = window.adsbygoogle || []).push({}); Firstly I'd like to mention I tried searching for answers related to this question, there are many results none of which seemed to answer my question properly.

I have heard that CoD uses prestige tokens system that if you have gained certain achievements in the previous titles you get a boost to the newest game.
This works similar to the Battlefield tokens where for each title you played you get a loyalty point and after you get X many you can unlock weapons earlier etc.

My question is since I only ever played the original Call of Duty some 10 years ago on steam I have not played any on my PS3.
How should I go about getting the achievements for the previous games to boost the prestige tokens for all future CoD games?
Which games and what do I need to do in that game.

Example: CoD MW1 do challenge lobby xyz (or even legit if the game is still alive)

Thanks for your help.