Dude, who do you think you're talking to? lol
You know nothing of code, let alone the code of any of these games.
You mentioned TW, so I riffed off of that. I've always said that it would be closer to BfME2. I've been talking about and debating the subject for like 15 years now. You assumed the motivation to include battalions was for "cosmetics." I gave examples of how it would not be merely cosmetic.
Battalions are a holistic approach. What you are talking about is a half-assed approach.
Yes. I've met this challenge before in very in-depth and well-debated discussions dating back years.
The pathfinding already needs significant work, and if battalions were taken as a new feature, then that work would go towards making battalions (formation fighting) work, instead of making mosh pit fighting and formation fighting work (your suggestion).
^This guy says I underestimate ramifications...
... I've been a part of the development of this game for 21 years. I understand perfectly what's feasible.