Far Cry 3 - Dog Soldier

This mission can be started from a NPC in a building that is west of the Nat's Repairs outpost. He wants you to take care of a rabid dog problem, with your objective to take out the alpha dog. Head a little ways to the marker to find around 10 dogs walking around. All you have to do is kill the one dog, so a sniper rifle will easily take her out without having to worry about the others. Once she's dead, return to the NPC to get your reward ($500).