Gun Game Rap at skin select?

[leftos]

Hi, I was just wondering what song plays at the beginning of a map when you enter a gungame server. It is a hip hop track with some lyrics like "I'll leave you on the ground if you're unnamed, my bullets are untamed" and something like "pick a team CT or T, either way get the USP"

I would appreciate if someone could tell me the song source or let me know where I can find it myself.

Thanks.