Grand Theft Auto: San Andreas/Cut Throat Business

This is a pretty easy mission. First, go to the destination marked with Mad Dogg. There is a BF Injection outside if you want to take it. Then you will be in a Vortex. Just follow OG Loc and forget about Mad Dogg. Eventually you'll get in a go-kart and the chase will continue. In the end you will meet OG Loc's record company.