Tactical doctrines determine how battle groups deploy and operate during a battle. Doctrines are a combination of command ability, training and communications.
Most late war armies operate with a flexible tactical doctrine giving them great flexibility on how they deploy and combine units. Other armies may have a limited or rigid doctrine that reduces their command and control options. Each army book lists and explains any doctrines used by its battle groups. For example, Soviet Battle Groups can have rigid, limited or flexible doctrines. In the early war, Soviet battle groups are rigid, but by the end of the war a few guard battle groups were operating with a flexible doctrine.
The doctrines are:
- Flexible (eg Germany throughout WWII)
- Limited (eg Commonwealth 1939-42)
- Rigid (eg Soviet Union 1939-43)
