"Incapacitate 5 Guardians from Stalking Zones" is an optional mission objective in Sequence 10 / Memory 03: The Observatory
Walkthrough[edit]
Guard 1-3
The first area has 4 Guardians in it. 3 of them are in various Stalking Zones spread across the whole of it. Head into the trees to the Southeast to get a height advantage and start locating them. With them all tagged using Eagle Vision you can then move a little farther South and get to the next tree. This will you get at a free running course that allows Edward to reach the Southwestern corner of the area. Here you will be able to ambush most of the Guardians without any trouble. With the closest one, which can be grabbed from a Stalking Zone with this approach. Move to the North after that and slip behind the second Guardian. Move in at a good pace and you can take him as well inside the Stalking Zone. Head West after that. Get to the edge of the Stalking Zone and watch the third Guardian. Tag him with a Sleeping Dart and knock him out. This will clear this section of jungle. Feel free to move toward the remaining Guardian and knock him out in the Stalking Zone he is in.
Guards 4 & 5
The second area has a bit more to it. Start looking to the Northeast using Eagle Vision to spot at least 3 of the Guardians here, but only 2 can be tagged. Go a bit to the South and look east to find the next one. Head over to the branch walkway on the nearby tree. Head onto it and cross over to the North across the free run course. Pause on the last branch to find the Guardian below you and the one to the Northeast. Tag them both with Eagle Vision to make your life easier. Now hit the Guardian to the North with a Sleep Dart. Head over to him, knock him out then loot the nearby chest. Now turn to the West and hit the Guardian with a Sleep Dart. Turn to the South and follow along the Stalking Zone to close to its end. This will let you get the fourth Guardian in a Stalking Zone. Now deal with the Guardian across the river who is likely in their surrender posture. Take him down to get a fifth from the Stalking Zone. Now head up the slope from the river and take out the Guardian there.
