MARINE CORPS BASE CAMP PENDLETON, Calif. -- Students from the Field Medical Service School here scurried through Camp Pendleton's Military Operations in Urban Terrain facility June 10 on their way to becoming field certified corpsmen or dental technicians.Sailors ran, jumped and climbed over and under various obstacles, provided security and set up a battalion aid station within the city. This training is only one event during the grueling seven-week course that exposes students to life in the field."This training is very physically demanding for them," said Staff Sgt. Dwight J. Fitzgerald, the school's senior military instructor. "For most of them, this is the most intense training they've ever had."Corpsmen and dental technicians who complete their basic training at Naval Hospital Corps School in Great Lakes, Ill., and who are assigned to a Marine unit, soon see a different aspect of their medical profession. Coming from a completely different environment, where they had doctors and nurses to fall back on, corpsmen find out here that they are the first and usually the only responders out in the field, said Petty Officer 1st Class William R. Banks, platoon adviser with the school. Students confirm the training is an eye-opener."This training teaches us real-life stuff that can happen on the battlefield. It's completely different than school," said Seaman Jennifer L. Haseman, student.The corpsmen are determined to prove themselves."We want to be with the new wave of corpsmen," said Seaman Apprentice Nick K. Lowery, student. "We want to be right out there with the Marines and do all the stuff they do," he said.While some of the students jumped through windows, others listened to a Marine instructor tell tales of the corpsman's value to the Marine unit. The students learned not only about their own history, but about the Corps.'"I don't think I could be as successful of a corpsman without this training because of what they teach here," Lowery said. "I think every corpsman should go to this training."