[thatguy96]

So you are talking about a specific country hehe. That changes everything. In the US Army, a Lt Col is usually at the head of a Battalion. Battalions (which in the US Army is used for Infantry, Armor, and Artillery formations of this size, and Squadrons, the relevant formation size for Cavalry units) vary in overall construction by type and time period. Usually there is some mix of companies and special platoons (signals, etc). I believe you are correct in assuming that on average the normal number has been around 3 combat companies.

It still really depends on what you want, and what you're looking to recreate. I'm not sure what the current breakdown is, but in terms of fighting elements, a Tank Battalion deployed to Vietnam in the 1960s had three Tank Companies, a Scout Platoon, and a Mortar Platoon. I think this was the basic organization in the US Army elsewhere too. A Marine Tank Battalion had four tank Companies (3 Medium and 1 Heavy), though Battalions deployed to Vietnam didn't have the Heavy Tank Company, replaced by a Reinforced AT Company. There was also a Flame Tank Platoon in the HQ Company.

You see, we're already getting pretty varied, and we've just looked at two different Battalion types.