Go into a death room game with him on the opposite team. He will sit and snipe on the stair rail by the stairs after the stairs of your base. Go the the slit in the floor with an m24 and move around while scoped in twords the rail. When you find him (He will be a spec noob.), stop and aim for his head. (Head because m24 isn't a 1 shot kill and because it has perfect aim.) Do that to him twice and....