In my previous Wildlands article about the Cluster Bomber trophy – kill 7 enemies with a single C4, I was mentioning A Better Mousetrap as a pretty difficult trophy to get, as you will need to find 7 enemies one next to each other, in a 5m radius, plant a mine and kill them all. I have seen videos with players that succeded to do this using lure and flashbangs.
Crazy. I have tried a couple of times in the same spot I took Cluster Bomber but it felt impossible.
It turns out that the trophy is pretty simple to take, but you need to have patience. I discovered that the Koani Airport (NW corner of the map) will always have sicarios on patrol. Alone. And some snipers. You will need a sedan (or a pick-up) and a mini-van (do not use heavy cars), and 7 sicarios to grab and stow them into the cars. Use also the trunk of one car.
The entire action will take about 15 to 20 minutes. Be patient also when you will arrange the cars one next to the other. The mine radius is only 5m. I failed once and saved the video sequence also. I will leave you with this: you will not need any friend to help you boost this trophy, as well as you will not need some sophisticated gaming skills. Play stealth.
Enjoy the movie and have fun taking it!