Here’s my opinion-
Too big for what I would use for the same tasks.
Magazines- I would cut down to 3 mag pouches- carrying between 3 to 5 magazines. Going down to 3 mags will be a lot lighter, and going to just 3 pouches will open space up on your rig if you decide to keep some other things that I advise on dropping ;). A redi-mod on the gun is a really simple way to carry an instantly accessible magazine, if not a little pricey.
Lose the knife. It seems really cool and useful, but it really isn’t. A quality multi-tool will be a lot more useful for pretty much everything except for making Miamoto Musashi giggle at you. It will also weigh less and have a smaller footprint.
Go with a normal belt-holster. Stick a couple extra mags on the belt. If you want to run some extra pistol mags on the chest rig- go ahead, but 1 or 2 will most likely be the most you will realistically need. Go with something like the Eagle FB for the pistol pouches- you can run one open and one retained.
Ditch the possibles pouch. You won’t need it during any string of fire during a training course, and if you are using it to wander the woods you should probably have at least a small pack with water, food, extra clothing, survival kit, hatchet, etc. There really isn’t any big need for it on the vest.
Ditch the big med pouch for a small detachable one, filled only with critical life-saving stuff you can use on yourself in case you become seriously injured. I like a tourniquet located in a place I can get to with either hand separate from the bleeder pouch. Put all the other first-aid and fancy stuff for the treatment of others in the third line.
If you are back-woodsing it you might want a nice little pouch for the GPS/cell. I also recommend a pouch for a backup light unless you are going to wear it on the first line. A dump pouch is really nice, not just for empty mags, but also for carrying extra mags to the line in case you drop to 3 mags and whatever course you are on requires more mags for a string of fire.
I have to carry soft armor (usually), hard plates (always), frags, smoke, bangs, minimum of 6 mags on my body (usually), a PRC-148, a first aid kit, a pistol and relevant mags (sometimes), pop-ups, water, extra mission specific gear (anything from breaching charges to MG ammo), a helmet, night vision, and other assorted silliness- so I train with all that crap on. I would love to be able to strip it all down to the bare essentials as I have laid them out.
Like I said, just what I would do.