Side Mission: Opium Farm.
Required Gadgets: Tri-Rotor (no upgrades needed)
Advised Plane Upgrades:
Command & Control (level 1 or 2)
- Shows the whereabouts of Dead Drops (collectables) on the radar. You can ignore this kind of improvement if you are going to play the game with adherence to this guide, because the walkthrough includes the information on the whereabouts of collectibles.
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The easiest mission I've found so far while playing the game is on the Opium Farm side mission.
On the first part of the mission you have to neutralise all the targets in the area with out without being detected (If you are detected, the remaining enemies will call for reinforcements and you can be quickly overrun depending on the difficulty.)
Once you have neutralised all the targets, you will be directed to another area to do the same. It is in this area that you will find 2 cameras in which to get this achievement.
If you have purchased Command & Control, you will see the laptop location on your screen. Make your way to the laptop location and it will be in a small room, with 2 cameras with lights monitoring the room.
Enter the room, and while out of the view of both cameras, get your tri-rotor out and fly it to any of the cameras in the room and pressing (X) when close enough to the camera will fire a shock dart at the camera thus disabling it.