Player Embed Code: Download Embed Share Soldiers with 10th RSG Learned to Employ Defensive Tactics AFN Okinawa Nov. 6, 2017 | 1:05 Soldiers with the Tenth Regional Support Group practiced deploying Claymore Mines. Lance Corporal Jonathan Pearson takes us to Camp Schwab, where soldiers learn to employ defensive tactics.Suggested Tag: The M-18-A-1 Claymore Mine is a defensive tool with an optimal range of 55 yards.