I remind you that in order to hit a compound, you must take over every Business owned by a family. Once you do that, go to the Granados compound, located near your safehouse in Florida . There's so philosophy here. Strike the guards at the first gate. Afterwards eliminate the others, to secure the back .
Go deeper into the compound. Eliminate the Granados men together with your best men . The sniper rifle can prove useful .
Go to the back of the property and after eliminating the enemies in the area, take the stairs up . Let the bruiser take care of the door .
Move forward, crack the safe and take the MP38 . Use the map and get to the place where you must plant the explosives .
Let one of your men plant the explosives  and get out of there as quickly as possible . The Granados no longer pose a threat. You have earned much money - use it to upgrade your men.