After returning to the village, talk to Dennis. Next, head to the logging camp indicated in the map. If you haven't done so yet, you may want to activate the radio tower as well. Once you're near the vicinity, scout the area and tag the targets you can see. The logging camp has multiple entry points; the one to the southeast being the lightest and least guarded.
Enter the weapon cache and place the bomb there. Get out of the shack immediately and get to a safe distance. After it gets blown up, you have the option to run away or kill the remaining enemies. I prefer doing the latter.