text: _________________________________________________________________________________Chapter 2
  2-41. Once allocated to an OSC, a division or brigade often receives augmen-
  tation that transforms it into a DTG or brigade tactical group (BTG), respec-
  tively. However, an OSC does not have to task organize subordinate divisions
  and brigades into tactical groups. Most divisions would become DTGs, but
  maneuver brigades in the administrative force structure may be sufficiently
  robust to accomplish their mission without additional task organization.
  2-42. The OPFOR has great flexibility regarding possible OSC organizations
  for different missions. There is virtually no limit to the possible permutations
  that could exist. The allocation of organizations to an OSC depends on what
  is available in the State’s administrative force structure, the mission re-
  quirements of that OSC, and the requirements of other operational-level
  commands.
  TACTICAL-LEVEL ORGANIZATIONS
  2-43. In the OPFOR’s administrative force structure, the largest tactical-
  level organizations are divisions and brigades. In wartime, they are often
  subordinate to a larger, operational-level command. However, they may also
  be directly subordinate to a theater headquarters or to the SHC. In either
  wartime role, a division or brigade may receive additional assets that trans-
  form it into a tactical group.
  2-44. A tactical group is a task-organized division or brigade that has re-
  ceived an allocation of additional land forces in order to accomplish its mis-
  sion. These additional forces may come from within the Ministry of Defense,
  from the Ministry of the Interior, or from affiliated forces. Typically, these
  assets are initially allocated to an OSC or FG, which further allocates them
  to its tactical subordinates. If the tactical group operates as a separate com-
  mand, it may receive additional assets directly from the theater headquar-
  ters or the SHC that are necessary for it to carry out an operational-level
  mission. The same higher command that augments a division or brigade to
  transform it into a tactical group can also use some units from one divi-
  sion or brigade to augment tactical groups based on other divisions or bri-
  gades.
  2-45. The purpose of a tactical group is to ensure unity of command for all
  land forces in a given AOR. Tactical groups formed from divisions are divi-
  sion tactical groups (DTGs), and those from brigades are brigade tacti-
  cal groups (BTGs).
  2-46. If a DTG has a mission directly assigned by an SCP, it acts as an op-
  erational-level command. If a DTG has a mission assigned by an intermedi-
  ate operational-level command (such as an FG or an OSC), then it acts as a
  tactical-level command. In either of those cases, the original division head-
  quarters becomes the DTG headquarters.