Training in Combat Water Survival develops a recruit’s confidence in the water. All recruits must pass the minimum requirement level of Combat Water Survival-4, which requires recruits to perform a variety of water survival and swimming techniques. If a recruit meets the CWS-4 requirements, he may upgrade to a higher level. All recruits train in the camouflage utility uniform, but those upgrading may be required to train in full combat gear, which includes a rifle, helmet, flak jacket and pack.