During
Mission 2, A Vintage Year, you are tasked with eliminating two targets - Manuel Delgado and Don Fernando Delgado.
Manuel Delgado is the target this achievement will be obtained on.
First off you will need a disguise. Use the sedative on one of the patrolling guards and steal his costume. Manuel will be located in the wine cellar. At the top of the wine cellar, there is a lone guard stood next to a 'Plant Bomb' location. When the guard leaves his post, plant the bomb.
Soon after, Manuel will appear below the planted bomb at the bottom of the stairs. Simply detonate the bomb and a platform will fall and crush him.
Note: This achievement won't pop until the end of the mission.Attached is a video walkthrough for the mission. All credit goes towards the video uploader,
srfgaming.
Please comment if you vote negatively. I will edit my solution to make it better.