In the mission Shore Patrol, there has an area trigger near the top of hill. If player enter this area, then it will trigger heavy fog. The fog will prevent player attack militias at long range.

But I found that there also has a secret way can bypass the area trigger.

Walk on the wooden pole and fence.

Be careful. Any wrong step will fall down and triggered a land mine.


Then jump on the nearest shack.

Don't worry about those militias on the dock. Because they are "blind" right now.

Move on other buildings through the roofs.

Walk on it with extreme caution.

Now you are successfully to reach the safe building.

Similarly, you can also reach the radio station by walk through the roofs. Most of militias will not attack you.