Might be a bit disturbing to some.
http://www.gulfwarrior.org/images/apache30mmhidef.mpegApache engaging iraqi soldiers with 30mm, notice that the soldiers didn't even know what shot them till the very last min. The first round of firing didn't hit any as auto range wasn't on.
http://www.gulfwarrior.org/images/MilitaryPointsRPG_GetsShotWithM249SAW.mpgAn iraqi militant with RPG get shot with M249 SAW, notice the tracers. He was hit 3 times, twice on the chest by tracers and once on the head.