Worst Job in the World

Hello mercenary! You know, the job of a peacekeeper is a very difficult one. Peacekeepers are expected to strike a strict balance between the warring parties, and often we find ourselves in the worst kinds of situations. In general, the UN is as interested in a speedy resolution of the conflict as the local authorities. But the local criminal elements are making it difficult. So my superiors require me to achieve new results in the fight against the looters. But how can I do it without casualties among the UN forces? Do you see where I'm going with this?

1. 1Eliminate any target with AR-15 weapons from over 100 meters away on Reserve, Lighthouse, Shoreline, or Ground Zero