There's an extremely easy way to get this achievement.
TC's Ghost Recon Breakpoint has 4 different classes to choose from, with each of them having a special class ability that you have to fill up by killing enemies a certain way. For the Panther class it's the Cloak & Run ability, which drops a smoke around you and makes enemies lose you.
Now, all you have to do is go to a Wolves Camp while using the Panther class, fill up the meter (or have it filled up once already), run towards a Breacher, Rocket Gunner and Sniper and press LB+RB to use the class ability, followed by Right Stick to finish them. You don't have to kill the three different wolves at one camp.
Side note 1: you can change your class at any Bivouac.
Side note 2: if you are new(er) to Breakpoint, there is a Wolves Camp called Camp Weasel, which is located in Good Hope Mountain, on the North-East edge of Moon Lake, which only recommends your gear to be level 30. Wolves can be hard to kill if you don't meet the recommended gear level.
Side note 3: in the left-bottom corner of your screen you should see the panther icon. When you stealth kill enemies or with CQC, the bar will fill up and you'll notice it's in color. By pressing LB+RB simultaneously, you will use your class ability. Use it close enough to the Breacher, Rocket Gunner and Sniper for it to work.