I'm using 2 different machines on this.
One is an all metal Kenmore for a lot of the flatwork and smaller operations like pile tape, bar-tacking the elastic, doing the zippers, and attaching the flats to each other.
The other is my heavy duty Juki 1541S, which is used for the MOLLE webbing and binding tape.
Flatwork:
Trace patterns on materials
Cut materials
Sew pile tape for chit marker on outer Cordura panel, in this case, Multicam
Sew pile tape on inner panels and pocket
Sew elastic on inner panels, including the pocket
If using the snap method with internal divider like on the 2nd pouch, install female snaps on inside of the chest seal/flat gauze pocket
Sew MOLLE webbing to close-side outer layer taking seam allowance into consideration and final assembly stitch clearance for the top of the pouch
Zipper work:
Cut coil zipper by the yard with hot knife
With wire cutters, snip pulls off and replace with 550 cord pulls or other quiet pull options
Sew inner pack cloth layer strips on inside of zippers, then top stitch
Sew outer Cordura layers strips on outside of zippers, then top stitch
Attach center panels, inner and outer to zipper, insert padding between
Assembly:
Hot glue, fabric glue, or double-sided tape foam panels to inside of 2 of the flats
Sew close-side MOLLE panel outer to inner panel with chest seal pocket, with foam in between
Sew outer Cordura panel to outer inside panel with foam in between
If doing the inner divider pouch, sew the divider 3 sides inside-out, then pull right-side out, insert foam, and top-stitch with final edge folded in and seal
Rivet in the snaps in the center panel of the zipper for the center divider (removable)
Sew binding tape, 550 cord, or shock cord tabs to the sides of the center divider as hangar control
Rivet snaps or use attachment method of choice for the hangar lines (this one uses plastic snaps, with the females already attached back in the flat work to the chest seal pocket)
Mock-up the finished panels and zipper panel with clamps, inside-out, centering on the zipper at the bottom
Stitch the outside together
Run binding tape over it
You're done
They are actually kinda fun to make, right up until the binding, unless you have a right angle tape binder. I'm looking at getting one of those set up.