Yes, if you are interested in learning about Air Cav, read bout LZ X-Ray.
Lt. Col. Hal Moore and 450 americans of the 1st Battalion, 7th (Airmoble) Cavalry were inserted into LZ X-Ray, and immediatly surrounded by 2000 VC. By the time they came out a few days later, about 150-200 Americans were casulties, and over 1000 Vietnamese would never fight a war again. Not pretty.
No one seems to know much about the LRRPs either.
In the military its pronounced "Lurp", and it does stand for "Long Range Reconissance Patrol". They were really six man hunter-killer teams that performed one main operation. Insertion behind enemy lines to ambush and kill as many "gooks" as possible. LRRPs were organized as such:
TL - Team Leader
ATL - Assistant Team Leader
RTO - Radio Telephone Operator
Grenadier - M79 GL equiped soldier
Pointman - Carried a shotgun or M16A1
Rear security - Watched the team's tail, M16A1 equiped. (Usually set up a 1man ambush for ~3 mins then humped it back to his team.)
One of these teams in the Seventh Army was hit by a regiment sized unit of VC. SIX of these guys held them off with gunship and artillery support alone. 623 kills went to these Lurps, and another 1000+ were counted towards the Puffs (Huey gunships) and artillery.
Also, MFR - Marine Force Recon. These men slipped through the lines, gathered information on enemy supply lines, bases, hqs, and other important targets. Then slipped back to friendly lines after leaving a surprise for the enemy. Very rough guys, invisible in the jungle three feet from your nose.
And SF operated in 11 man A-Teams, just wanted to add.