(adsbygoogle = window.adsbygoogle || []).push({}); I heard that, once you prestige, you earn a whole new category of challenges(I can confirm this b/c I prestiged) but, I also heard if you say get, 499 kills for tyhe intervention(you need 500 for the prestige challenge) after you prestige does all the kills you got for tat gun go away? b/c I don't think it's possible to get 1000 kills with the AC-130.

once you have the prestige challenges they do not reset themselves