* The Battle of the Tenaru River/Battle of Alligator Creek qualifies as this.
* Basilone holding the line by using a [[{{BFG}} 33-pound crew served machine gun]] as a personal weapon to hold off a Japanese attack in Part 2. Since the gun was designed to be fired with a tripod, he ended up getting second-degree burns on his hand and arm while holding it, since it lacked the grips to be used in this manner and he'd lost the arm-mitten that crews use to insulate the heat while moving the gun. What's more, his comrades are just dumbstruck he's holding the line ''by himself''; the only sound of gunfire at that moment is the one from Basilone's machine gun. This is what got him the Medal of Honor, and the series actually ''[[RealityIsUnrealistic down-played]]'' what this guy did to keep the episode from going too long. In RealLife Basilone held his position for ''THREE DAYS''. No food and no sleep. And he did it while running back and forth between ''several different'' positions because all of the gun crews had been killed.
* The Battle of Peleliu, but especially the [[StormingTheBeaches beach landings]] and subsequent battle for control of the island's airfield. It's one BigBadassBattleSequence followed by another.
* [[https://www.youtube.com/watch?v=8yD_c1pnQ6k The "Slap a Jap" speech]]. Basilone overhears one of the men talking down about the enemy and gives him a reality check.
** That speech? Not something cooked up by Hollywood. That was heavily remembered by the Marine he shouted it at, and he would ultimately survive the war.
* On Peleliu, a tank approaches Sledge's unit looking for another company. Hillbilly asks that they take their wounded but the tank driver refuses. Ack-Ack proceeds to stop the tank by '''standing directly in its path''' while Hillbilly climbs on top and demands they take the wounded. Which they do.
* Ack-Ack volunteering to scout a Japanese position instead of making Sledge and Leyden do it for him. Then after reporting back to battalion that their objective can't be taken without heavy losses, he decides he'll risk a court-martial to get their orders changed.