Easier Mission, One Shot, One Kill On Veteran:

when you position capt. Macmillan quickly plant claymores along the perimeter of the fences, then throw c4 in the fenced in area and run into a booth that is somewhere in front of capt. Macmillan. face away from the open window and go prone (this is a glitch, when people shoot or throw grenades at you it will do nothing to you, unless you can actually see them). when the first claymore blows, trigger the c4 then just wait. then... GET TO THA CHOPPA.