Here are stickers for a SGA Field-ops Minifig.
1. Put a minifig together with Light Grey Legs, Arms and Torso. Also yellow hands. Put on a desired yellow head and wig if necessary
2. Print Decals. The vest should be 1.5cm wide and the patches about 3/4mm.
3. Cut out the vest and glue it on with a gluestick and do the same with the patches.