Zodiac and Late Roman Army Organisation

[Flavivs Aetivs]

Well I've read in Modern and Ancient sources and this is what I've deduced:

The Legiones Comitatenses numbered about 800-1200
The Auxilia Palatina and LEgiones Palatinae numbered 400-600
The Limitanei numbered around 400-600 garrisoned, and probably operated 800-1200 as pseudocomitatenses.
Vexillationes numbered 300 for cavalry, and varied for infantry depending on the size of the detatchment

And units were structured as such:
Contubernium - 8
Century - 60-80
Maniple (4th Century) or Numerus (5th Century) - 2 centuries (120-160 men)
Cohors - 3-4 Maniples/Numerii (360 - 640 men)
Legion - 2 Cohors (Or 8 Numerii)(800-1200 men)
Excercitus - Multiple LEgions and Cohorts of Comitatensian, Limitaneii, and Palatina troops

I deduced this, but there's not much evidence supporting any actual structural organization or unit sizes, and the distributio numerorum is just paper strength...