Hey all, Looking carefully at this picture you can see the flap on the backside of the pouch. I believe that is attached at a 45 degree angle just like the WW II MP 40 ammo pouches (however all the WW II ones I have see have 2 flaps , I think the movie only had one). I initially thought that the Movie ammo pouch was attached directly to triangle "D" ring, but this and other photos clearly show that this is not the case. As can be seen the flap on the back goes through another loop. If you look closely you can see the abdominal ammo pouches webbing strap coming out of the triangle ring and passing through the second loop. The second loop is right next to the triangle ring but not attached to it, it is attached to the webbing that comes out of the ring. Other details shown are: the top of the ammo magazine is visible from the side - the pouch does not go all the way to top, however the back-plate does go all the way up; whats not clear is that the flap covering the magazine just barely covers the magazine inside - it doesn't extend far past; looking at the webbing strap going up from the abdominal ammo pouch you can see that the shoulder pouch is at an angle - it is not mounted vertically. When Krennic and his six Death Troopers were walking towards Galen's home on Lah'mu 3 of the Troopers had the Shoulder pouch. TWO of the 3 had the pouch mounted at a 45 degree angle. I think this is an important detail that has been overlooked. I feel the the location of the shoulder pouch sown in the CRL is inaccurate. I have seen no photos anywhere that it's mounted that far to the outside. They are at a 45 degree angle or when shown vertically mounted, they cover the left side abdominal webbing harness strap. (If the loop on the back of the pouch is at an angle - this would tend to make the pouch hang at an angle also.)
Anyway I hope this is some helpful information. Cheers!