A hospital corpsman with Company F, 2nd Battalion, 4th Marine Regiment, treats a simulated civilian casualty at Range 220 Tues. 2/4 is at the conclusion of ITX and is scheduled to begin a Special Operations Training Group package. - A hospital corpsman with Company F, 2nd Battalion, 4th Marine Regiment, treats a simulated civilian casualty at Range 220 Tues. 2/4 is at the conclusion of ITX and is scheduled to begin a Special Operations Training Group package.