Love the creativity and concept. Just a few thoughts stemming from my military experience (radio operator attached to marine Force Recon):
Throat mics - Mixed use nowadays. They don't pick up your voice well if you're tired and out of breath.
The latest and greatest technology people seem to be experimenting with is the "bone mic" that picks up vibrations by your ear. However, Halo shows most of their folks using the headset, which is also a nice piece of visual flair.
Those kevlar nape pads for the back of your head are a waste. Knobs and such are also more likely to break. Simple sliding straps are reliable and easy to repair.
Headset seems fine. Modern day Peltor headsets boost low sounds and dampen loud noises such as gunshots so you don't go deaf and can hear everyone around you. Also great for radios.
If you're going for the "high-speed" look, they tend to trend toward lighter equipment and more stripped down gear, and having a million attachments and bulky gear typically leads to the jokingly derogatory term of "gear queer". Low body armor (might consider skipping the bulky neck protector, and it's never fun to run with a groin protector), streamlined layout, take just what you need. Looks like you're on the right track. Can't wait to see where this goes!
