"Kill 4 Gunners" is an optional mission objective in Sequence 5 / Memory 02: Traveling Salesman
Walkthrough[edit]
This objective is active while you are traveling through Kingston tailing Prins and Torres. As you tail them, keep to the rooftops North (and a bit West) of the starting position. Along the way you will encounter a number of Gunners will keeping in range of your targets. Kill each of them as you find them en route.
