A USMC radio operator on a ground patrol with a plan to be out for less than a day and cover 20km will have radio batteries, a radio, flak jacket, 4 extra magazine, m4, smoke grenades, helmet, sunglasses, weapon cleaning kit, extra socks, 2 days of mre, probably 2l of extra water, poncho liner, rain jacket, gloves, extra socks. Others will have heavier weapons but less radio gear and two people will have ied jammers. Night vision goggles and a peq 16 plus extra batteries and grenades will depend on what they are doing. 60lbs or more is normal for a ground patrol.