Commanders pouch is a bit naff, you should just lob all the maps and stuff down the front of your smock.
Mags on the left, food and brew kit behind, water everywhere else. Bergen side pocket for gore-tex and softie - or cans of coke and shorts and flip-flops…
And that /\ is all you need to know about packing webbing.
Everything else goes in Bergen or daysack.
A great “commanders” pouch is the stealth admin from british tactical, 4 molle wide but thin as f***, I have one with 2 triple ammo’s mounted on top for a flask and hat and gloves. On the right side btw.