The Peleliu Hills episode might be bloodier than the one crossing the airfield.
From a Wikipedia description, describing events yet to come in this series
One particularly bloody battle on Bloody Nose came when the 1st Battalion, 1st Marines, under the command of MajorRaymond Davis, attacked Hill 100. Over six days of fighting, the battalion suffered 71% casualties. Captain Everett Pope and his company penetrated deep into the ridges, leading his remaining 90 men to seize what he thought was Hill 100. It took an entire day of bloody fighting to reach what he thought was the crest of the hill, but ending up being the nose of yet another ridge, occupied by more Japanese defenders.
Trapped at the base of the ridge, Pope set up a small defense perimeter, which was attacked relentlessly by the Japanese throughout the night. The men soon ran out of bullets, and had to fight the attackers off with knives and fists, even resorting to throwing coral rock and empty boxes of ammunition at the Japanese. Pope and his men managed to hold out until dawn. When they evacuated the position, only 9 men remained. Pope would receive the Medal of Honor for his actions.
The Japanese eventually inflicted 60% casualties on Puller's 1st Marines, who lost 1749 out of approximately 3000 men.
http://en.wikipedia.org/wiki/Battle_of_Peleliu
The landing on a hot beach and the World War I-like frontal assault crossing of the airfield were suitably terrifying. No body armour in those days, which makes it all the more amazing.
I was trying to find out how many killed and injured there were in the airfield crossing but wasn't able to find it. It's a simple thing but something that might be missing from this series that you saw in BoB . . . . some historical context in a paragraph or two at the end of the episode.
Cowperson