AHK has been detected for years, just a kick is all it can give you because punkbuster cant gather proof you are using it to enhance your game. People calling for an injection method are just asking to be banned to be honest.
Half the time I get kicked, half the time my game crashes, the best thing is to just deal with it. Its free so enjoy your games with a few kicks how ever annoying.
For all those wondering, This is detected however you can't get banned only kicked (Although keep in mind if your too obvious the server admin might ban you from his/her server). I discovered a way how not to get detected, all you do is ever now and then disable the mod (completely exit autohotkey), wait a little bit, then you can load it again. Also, between matches don't use it only use it once ur in the match.