IMPORTANT UPDATE NOTICE!!!
The sound files go in the "vo" folder, not in the "Player" folder. Disregard from reading the "Readme" and put the sound files in the "vo" folder like this:
steam \ steamaps \ username here \ team fortress 2 \ tf \ sound \ vo
Sorry for the mistake guys, and have fun!
(Note: The 6 files saying "Mine!" replaces the 3 "autocappedcontrolpoint" and the 3 "autocappedintelligence" sound files. So to break it down, every time you cap a point or capture a intelligence, he ill always say "Mine!")