MCS/P means Maneuver Control System/ Phoenix in Military
Similar to MCS/P
13AD - 13th Airborne Division13B - Military Occupational Specialty code for Cannon Artilleryman
147FA - 147th Field Artillery Regiment
15MG - 15 Militia Group
17AD - 17th Airborne Division
180FA - 180th Field Artillery Regiment
189FA - 189th Field Artillery Regiment
View all in Military