Then the squad ran into the litter obstacle course that directed the team over walls, through trenches and under barbed wire. Throughout the course, squad members were hit by enemy fire and chemical attacks. They had to remember tasks like masking the patient, changing protective mask filters and properly closing the protective mask carrier. At the end of the course, they came upon other medics loading patients into an ambulance. To complicate matters, the ambulance wouldn't start and the patients had to be unloaded and loaded into a 5-ton truck.
Soldiers get through a barbed wire and mud obstacle during a litter-carrying course.
Candidates were hit by a simulated gas attack just before crawling under the wire. You got people who are dying. You're the only one out there and they all want to be helped. They all want you to take care of their buddies. They're all yelling and screaming.