U.S. Marines with Weapons Company, 1st Battalion, 6th Marines, taking highly accurate IDF at Patrol Base Georgetown in Kajaki Sofla, Afghanistan on November 22, 2011. The Marines suppress the enemy with squad organic weapons, TOW missiles and .50 caliber machine guns. After 5 hours the Marines take casualties and get the wounded medevac'd. U.S. Marine Corps motion imagery by Lance Cpl. Jacob M. Lagoze.
Probably the most chilling part of the video is about half way through when the Marines realize that a sniper has them zeroed in...and then the grenades hit. Men are wounded and they have to plan to get the wounded to the birds in the middle of the indirect fire (and sniper direct fire).
Update: It seems that the viewers are overloading the video at DVIDS. It works at times. The Rumor Doctor, Jeffrey Schogol at the Stars & Stripes, sent this version on Youtube (Thanks, man!). So if the above video didn't work for you, this one, below, will: