another 18A, usually a captain. The XO is himself assisted by a company technician, a 180A, generally, a chief warrant officer three, who assists in the direction of the organization, training, intelligence, counter-intelligence, and operations for the company and its detachments. The company commander is assisted by a senior non-commissioned officer, an 18Z, usually a Sergeant Major. A second 18Z acts as the operations sergeant, usually a Master Sergeant, who assists the XO and technician in their operational duties. He has an 18F assistant operations sergeant, who is usually a Sergeant First Class. The company's support comes from an 18D medical sergeant, usually a Sergeant First Class, and two 18E communications sergeants, usually a Sergeant First Class and a Staff Sergeant. Support positions as part of the ODB/B Team within an SF Company are as follows: The supply NCO, usually a Staff Sergeant, the commander's principal logistical planner, works with the battalion S-4 to supply the company. The Chemical, Biological, Radiological, Nuclear (CBRN defense) NCO, usually a Sergeant, maintains and operates the company's NBC detection and decontamination equipment, and assists in administering NBC defensive measures. Other jobs can also exist depending on the B-Team structure. Specialist team members can include I.T. (S-6) personnel, and Military Intelligence Soldiers, including Intelligence Analysts (35F), Human Intelligence Collectors (35M), Signals Intelligence (35 N/P - also known as SOT-A and SOT-B as related to their positions on SFODA and SFODB teams), Intelligence Officers (35 D/E/F), and Counterintelligence Special Agents (35L/351L). Basic Element – SF Operational Detachment-A (SFODA) composition A Special Forces company normally consists of six Operational Detachments-A (ODA or "A-Teams"). Each ODA specializes in an infiltration skill or a particular mission-set (e.g. Military Freefall (HALO), combat diving, mountain warfare, maritime operations, etc.). Each ODA Team's number is unique. Prior to 2007, each SF Group had their own unique methods for numbering ODA Teams which often denoted that particular team's capabilities. Starting in 2007, though, the number sequence was standardized amongst all groups and the team number would now identify its group, battalion, company, and the team itself. The first digit would specify group (1=1st SFG, 3=3rd SFG, 5=5th SF, 7=7th SFG, 0=10th SFG, 9=19th SFG, 2=20th SFG). The second digit would be 1-4 for 1st through 4th Battalion. The third digit would be 1-3 for A to C Companies. The fourth digit would be 1-6 for the particular team within that company. For example,