 There is a mission where Donald Love sends you to start a war  between two rival gangs so the property values in the area will go  down. There is a similar mission in Grand Theft Auto Vice City  (which takes place before GTA3) where Avery Carrington sends you on  a similar mission. When he gives you this mission, a young Donald  Love is present as a protégé. Avery tells him to pay attention and  he might learn something.