So the US Soldier let the entire "Command" presence they had established collapse due to one man with a rock in his hand? Could you provide a verifiable source for your info beside "My Grandfather was there?"
Lets see: The US Mortuary command was ordered to report deaths by bullets other than AK 47's?
Logistics Command "lost" the records of the flights from DR to Vietnam?
All orders were "expunged" and changed from showing a soldier going to the DR and listing Vietnam instead?
All letters from Soldiers/sailors home from DR were confiscated and disappeared?
Did the US use Black Helicopters or White planes to bring those iced bodies to Vietnam?
You tell a good story, a fiction writer would be a better position for you than factual reporting in this instance
Just check your data on the actual casualty report of the forces in 1965 and compared to actual data of the Hospitals that were used as staging areas for the same troops in the DR...
The actual events were documented by several witnesses after the man was also grabbed and put under arrest by the secondary support force to the leading jeep on the convoy.
US soldiers were killed by bullets from different calibers in Vietnam, including the same caliber used by the Dominican troops that revolted and joined the constitucionalistas. The first US death was documented and photographed as it happened by reporters, which later after that incident were barred from riding with the US troops (the press was international).
The bodies where flown via helicopters from Las Calderas and San Isidro to awaiting ships off shore, there they linked with Vietnam's returning vessels that actually carried the bulk of deaths from the war there. Something that's done in many occasions with covert operations.
US soldiers didn't get mail in the DR until after the situation was totally under control (no fighting) as such any soldier that landed and got shot before that could as well be reported fallen in any part of the world for that matter...
Notice that the US used Army, Navy and Marines to land in the DR...
What you don't know about the things your USA did in the world without the regular citizen knowledge would fill many stadiums over and over again...
The US troops were hit hard by snipers when they arrived here in the DR, they had to resort to blast tank shells and bazookas to root the snipers out and stop more casualties. The guys doing the shooting where kin to the Navy Seals, very effective in guerrilla warfare and marksmanship was top in class...
You're the one who doesn't know much about that time and events, we do...
Some "reports" by your own military:
Company I, operating on the left flank, was not so fortunate. As it passed near the U.S. Embassy, newsmen and photographers who climbed aboard the vehicles wondered why the marines were being so cautious.19 The answer came minutes later as the company approached its objective, Point C at the intersection of Avenida Francis and Calle Leopoldo Navarro, about a block and one-half north of the Embassy. Small-arms fire suddenly erupted from housing near the old Santo Domingo airport and from buildings along Avenida San Martin n and Avenida Presidente R?os, the latter an approach to the company's ultimate objective, Point D. The company commander, restricted to the use of small arms, sent a request up the chain of command to Masteraon to use heavier caliber weapons to dislodge the snipers. While awaiting a response, the company commander proceeded to Point C, where he ordered his three platoons to silence the rebels through a series of squad- and fire-team rushes. The results were mixed, with the 1st and 3d Platoons taking casualties of one killed and eight wounded. That afternoon, the company received authorization to use 3.5-mm rockets to reduce the buildings housing the snipers. Although the rockets proved highly effective, a checkpoint established at Point D could not be held. In view of this, Colonel Daughtry ordered the company to consolidate its position at Point C.
Now, think for a minute how much do they really tell you always? Think how even deaths in Iraq are phased out in days and sometimes brain dead bodies are brought to the US to be labeled as post injury deaths...
Are you that naive???