The Merle Revelation

The target is Gregory M. Yeager, the biochemistry student observing the Taita brewing Ayahuasca, and the effects of it on some tourists.

The nearest starting location is at the Shaman's Hut (Mastery Level 8). The Taita and Yeager are the only people around that can notice anything, as the tourists are too zoned out to see or hear anything you commit. Therefore, as long as the Taita doesn't notice you knocking him out so you can take the Shaman disguise off him, you will get a Silent Assassin rating without much stealth or subtlety neccesary, because it doesn't matter if Yeager spots you, as long as you kill him before he manages to report you to any street soldiers in the area.

The new target is Ezer Ávila Villaneuva, a villager working on a scooter at the front of Andrea Martínez' Compound in the village.

Once you eliminate Yeager, make your way across the steel bridge and through the village. As you go through, you may notice that some of the villagers will start to follow you to bask in your revered presence. Fortunately, they aren't allowed in Martínez' Compound, but they will stare at you from the entrance, so be careful not to be spotted doing anything. Be careful not to be recorded by the camera attached to the outside of the compound, as you will need to go to the 2nd floor to delete the evidence.

Villaneuva has a street soldier supervising him nearby, although the soldier tends to go and stare at his reflection in a bird bath nearby instead. You can knock the soldier out and hide him in a small bush next to the bird bath. From there, you can lure Villaneuva into the compound's bathroom, or onto the stairway behind the gate next to him, but watch out for the tourists talking about P-Power and walking past the stairs when you get close enough to trigger their conversation. Once he's eliminated, Villaneuva can be dumped into the river to hide his body.

The new target is Antígono Henríquez Rosas, a chef working in a building next to the Town Plaza.

The new complication requires you to have at least 3 people following you when you eliminate Villaneuva and Rosas; walking around town will quickly amass the required amount. Since Villaneuva is in Martínez' Compound, the followers won't be bothering you anyway, so his elimination should be performed the same way.

Lethal poison can be obtained by scouring the jungle outside the Shaman's Hut and grabbing certain poisonous flowers or a lethal poisonous frog next to the Taita's outhouse. Rosas stirs and occasionally tastes some stew in a pot he is brewing (which for some reason replaces the water bottle he drinks from anyway in the normal mission), then moves away from it to work by the stove, which is your opportunity to poison the brew, as it is a suspicious act when disguised as the Shaman. Watch out for the woman in there with Rosas who may spot you and won't stop staring at you until you leave, and make sure to leave a gap between you and your followers when you enter the building so they don't spot you poisoning the stew as well.