***misable***
This is done on level one, right after you get your armor ability. You will see a big donut to your left. In front of you are 3 soldiers talking. Go ahead and mark them, get behind the donut and wait for them to stop talking. Once they do 2 of them will walk towards the donuts, you should be able to see their triangles, once one or both of them get close "use" the donut and it will fall on them.