A very general question.
1. For getting around on the ground, the 1/4 ton was most often
used; now replaced by the HUMVEE.
2. In the air, the UH-1 Huey was used (UH-1 Iroquois).
3. For distance travelling, the C7 Caribou, C123 Provider, and
C130 Hercules were used.
4. For travelling around the rivers, US Navy Brown Water Navy
"ATCs" were used (armored troop carriers).