| Headquarters Platoon (4, 29) | ||
| FIST Commander | brigadier | |
| Chief of Staff | colonel | |
| Aide | lieutenant | |
| FIST Sergeant Major | sergeant major | |
| Company 1st Sergeant | first sergeant | |
| Admin/Training Chief | gunnery sergeant | |
| Chief Clerk | staff sergeant | |
| Clerks (5) | sergeant-pfc | |
| Security Platoon (1, 20) | ||
| Platoon commander | lieutenant | |
| Platoon Sergeant | staff sergeant | |
| Communications (2) | lance corporal) | |
| Blaster Squad | ||
| Squad Leader | sergeant | |
| Fire Team (x3) | ||
| Fire Team Leader | corporal | |
| Blasterman | lance corporal | |
| Blasterman | pfc | |
| Assault Squad | ||
| Assault Squad Leader | sergeant | |
| assault team (x2) | ||
| Assault Team Leader | corporal | |
| Gunner | lance corporal | |
| Assistant Gunner | lance corporal | |
| F-1 (personnel) platoon (2, 10) | ||
| F-1 | captain | |
| Assistant F-1 | lieutenant | |
| Communications (3) | corporal/lance corporal | |
| Clerks (4) | corporal/pfc | |
| Mess Section | ||
| Chief Cook | staff sergeant | |
| Asstistant Cook (2) | lance corporal/pfc | |
| F-2 (intelligence) platoon (4, 35) | ||
| F-2 | commander | |
| Assistant F-2 | captain | |
| Senior Analyst | warrant officer | |
| Analysts (5) | gunnery sergeant/corporal | |
| Observation and Fire Control Section (1, 15) | ||
| Section Commander | lieutenant | |
| Section Chief | master sergeant | |
| Mechanics (3) | sergeant/lance corporal | |
| UAV Team (x3) | ||
| Flight leader | staff sergeant | |
| Computer operator | sergeant/lance corporal | |
| Recon Squad (uses special weapons) | ||
| Squad Leader | staff sergeant | |
| Recon team | (x3) | |
| Team Leader | sergeant | |
| Reconmen (2) | corporal/lance corporal | |
| Communications | lance corporal | |
| Sapper (engineering) Platoon (1,19) | ||
| Platoon Commander | lieutenant | |
| Platoon Sergeant | gunnery sergeant | |
| Construction sect | ||
| Section Chief | staff sergeant | |
| Engineers (9) | sergeant/lance corporal | |
| Sapper Section | ||
| Section Chief | staff sergeant | |
| Sappers(7) | sergeant/lance corporal | |
| F-3 (operations) Platoon (4, 38) | ||
| F-3 | commander | |
| Assistant F-3 | captain | |
| F-3 Chief | first sergeant | |
| Psy/ops Section | ||
| Area specialist/section commander | captain/lieutenant | |
| Section chief | gunnery sergeant | |
| Operators (4) | sergeant/corporal | |
| Communications (4) | corporal/lance corporal | |
| Clerks (4) | corporal/lance corporal | |
| F-4 (logistics) Platoon (3, 22) | ||
| F-4 | captain | |
| Assistant F-4 | lieutenant/ensign | |
| Communications (2) | lance corporal | |
| Clerks (4) | corporal/lance corporal | |
| Armory | ||
| Chief Armorer | master sergeant | |
| Armorer | gunnery sergeant | |
| Assistant Armorer | staff sergeant | |
| Armorers (5) | sergeant/lance corporal | |
| Supply Section | ||
| Supply Officer | warrant officer | |
| Supply Chief | gunnery sergeant | |
| Supplymen (7) | sergeant/pfc | |
| Medical Platoon (0, 0, 3, 8) | ||
| Surgeon | commander/lieutenant | |
| Asstistant Surgeon | lieutenant | |
| Dentist/Oral Surgeon | lieutenant | |
| Chief Medical Corpsman | chief petty officer | |
| Corpsmen (6) | HM/PM1-3 | |
| Dental hygienist | (Navy rating) |