The following is a walkthrough of the Shakedown mission in Grand Theft Auto: Vice City.
After taking over Diaz's mansion and business, Tommy decides it is the perfect time to take over the town and show everyone who's in charge. Tommy decides the best way to let his name be known is to destroy shops in the North Point Mall. By doing so, he will intimidate the owners into paying protection money.
You will have five minutes to complete this mission. Get a fast car and drive to the North Point Mall, and make that sure you have plenty of ammunition and some fast weapons. Once you enter the mall, do not hesitate; begin firing immediately- aim at the windows and fire until they break. Continue until every window pane is destroyed and all the shop owners are begging for protection. Look out for cops, as your wanted level will increase during this mission. If you run out of ammunition, you can buy some at the Ammu-Nation within the mall.
On the iOS and Android versions of the game, you only have to destroy 10 glass windows, making the mission a lot easier.