"Gears of War" achievement question.

There is an achievement on "Gears of War" for killing 3 enemies at the same time 10 different times. Can someone tell me an easy way, or any way, how o unlock this achievement. Because no matter how easy it sounds to unlok this achievement. It is actually really **** hard. Any help would really be great. Thanks.

Me and a group of friends took turns doing it.

Actually, i have a better way. On the level where ur walking on the planks, and if u fall through, u see all those little guys runnning around? (sorry for not being specific) Well, throw frags down there and u should get it easier:Dseals44

On the Prison Breakout...when the locust cut the door down drop a frag, in the door way, repeat this over and over on casual. That's how I go mine, It did'nt work every time tho.tyler2010

On the Prison Breakout...when the locust cut the door down drop a frag, in the door way, repeat this over and over on casual. That's how I go mine, It did'nt work every time tho.tyler2010

[QUOTE="tyler2010"]On the Prison Breakout...when the locust cut the door down drop a frag, in the door way, repeat this over and over on casual. That's how I go mine, It did'nt work every time tho.Sandro909

Actually, i have a better way. On the level where ur walking on the planks, and if u fall through, u see all those little guys runnning around? (sorry for not being specific) Well, throw frags down there and u should get it easier:Dseals44

[QUOTE="tyler2010"]On the Prison Breakout...when the locust cut the door down drop a frag, in the door way, repeat this over and over on casual. That's how I go mine, It did'nt work every time tho.Cobalt75

Yep thats the best way to do it right there.

On the Prison Breakout...when the locust cut the door down drop a frag, in the door way, repeat this over and over on casual. That's how I go mine, It did'nt work every time tho.tyler2010