I love HYK units and have been using them for a long time. Also glad to see HYK add the ACU's. However, there are a large number of faults with the ACU texture.
How do I know...Well, I wear them everyday, so that might explain it.
Color - The color is wrong. ACU's arent grey. They're tan with two shades of green. The early experimental versions were grey, not the ones we wear today.
Ammo Pouches - We're issued ACU pattern ammo pouches with Molle gear. No more camoflauge pattern.
Camelback - Black or ACU pattern camelbacks OR MAYBE green (but rarely). Also the Army issues the Camelback MULE, not what HYK modelled.
Arm Patches - The US flag should be on the flap of the arm pocket. Not on the patch part. Also, all soldiers wear a unit patch on their left arm, with a combat patch on their right (if you've been in combat, that is).
Aside from that the texture iteself is very high quality and I'm impressed at the amount of detail put into the models. Good job, HYK, but would love to see you come through with the historical accuracies of the unit.
I can send you photos of my uniform for a reference if you'd like, or if you need a better understanding of the uniform layout. I also have tanker Nomex uniforms if you'd like (unfortunately NOT the ACU pattern ones....yet).
-LT