Okay kiddo, so imagine you are playing a video game where you have to jump out of a plane with a parachute and land safely on the ground. Well, that's sort of what paramarines did in real life during World War II.
Paramarines were soldiers who were specially trained to jump out of airplanes with parachutes and land behind enemy lines. They had to be really tough and brave, because they were often jumping into dangerous places with little or no backup.
Once they landed, paramarines might have to fight enemy soldiers, gather important information or sabotage things that the enemy was using. They had to work quickly and quietly, because they didn't want to be caught.
Paramarines were very skilled and were an important part of the war effort. But their job was also very dangerous and not many people could do it.