REWARDS - Respect
View the cutscenes and you'll eventually be outside with your friends. One of the Grove Street boys comes and tells you that a bunch of Ballas are coming to the neighborhood. Sweet shouts some orders for some preparations before the Ballas arrive.
There will be 3 waves of Ballas. The first wave comes from directly in front of you and consists of around 8 Ballas. Use the cars as cover while killing the Ballas. The second wave consists of 4 Ballas, who are on the bridge above firing down on you. Simply auto-target them and kill them before they can do any damage.
The third, and final, wave consists of 12 Ballas who come from the alleyways and from behind the houses. This is probably the hardest part of the mission. Concentrate on one pack of Ballas before moving onto another pack. The Ballas will come from the north, east and south sides of the cul-de-sac, so keep an eye out and watch your back. The mission is complete when all Ballas are dead.