There are three possible locations for this horde, the first is in their cave which is due north of the east entrance of the Crater Lake Bwy tunnel. The second location is under the bridge that goes over the rail road on Santiam Hwy, and the third is down by the water northeast of the bridge. I did this mission at night and found the horde down by the water. I took up a position is some bushes just to the south of the horde, I got there just in time because as soon as a crouched down they started to move. I got their attention with an attractor bomb and when they were gathered around it I started hitting them with grenades. After 4 grenades the horde was small enough to take on with my Chicago Chopper, there were only about 4 Freakers left.
This mission pays 4000 XP, 1700 credits, 1650 in camp trust points, and the Horde Killer story line will be updated.
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