Nature-Spirits wrote:What are the best doctrines in HOI4? Specifically land doctrines, because they seem the most useful.
Also, what use are ships? I don't understand the naval aspect of warfare at all.
Grand Planning and Superior Firepower are useful if you have small manpower, and for the latter, strong industry for support equipment/artillery.
Mass Mobilization is for the kinds of China, Soviet Union, Indonesia, where manpower is not an issue.
Mobile Warfare is if you have the capability of mechanized/armor and intended to be blitzkrieg things.
What do you want to know about the ships? They have four policies. Patrol, patrolling seas. Destroy, destroying enemy ships on the seas. Convoy raiding, and do nothing policy.










