How do you cross attach platoons?

[lukerduker123]

This is something I always wanted to ask pertaining to platoons and companies. If I use the HQ and command fix to, attach a platoon(1) to a company(2), then turn that company into a platoon and attach it to another company(3), would the rally chain go through all four (1,2,3,HQ) or would it go through the platoon, the company, and the HQ? (1,3,HQ) since 2 is now considered a platoon? If it's the former can I feasibly use this to simulate a brigade structure?