I think that many T2kU "divisions", c. 2000, would be organized, roughly, like Russia's current Battalion Tactical Groups. The attached article explains the BTG's Cold War origins and evolution to today, and describes its current organization (including TOEs).
https://rusi.org/explore-our-researc...tactical-group
The rationale for the development of the BCT reads like a description of the battle space of the late Twilight War.
Quote:
"Over time, divisions and regiments became fairly proficient in combined arms combat, but the nature of the battlefield was changing. The future battlefield would be fragmented, with gaps between units, open flanks and combat not only at the front line, but also throughout the battlespace. The concept of the front line itself was being challenged. It thus became obvious that the battalion was a prime component of future war and battalions had to fight combined to win. The problem was how to combine branches into battalions and fight effectively."
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As to formation head count, the generic BTG's TOE is pretty close to the average unit strengths for "divisions" described in the v1 books.
Quote:
"Most BTGs have between 700–800 personnel, but a few have around 900."
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One could extrapolate that larger T2k "divisions", both NATO and Soviet/WTO, would therefore consist of 2-3 such sub-units (the IRL Russian army calls 2-3 BGTs a brigade).
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