I get what your saying, but I do it that way because I understand it that way better. My high poly strike dagger was made the way you are suggesting and was 5 times as large, yet my low poly one has nearly all the same details. I tried deleting doubled up faces where I could, but in many places they stick out an thus cannot be deleted.
As for your model, if you removed my shield and rifle my strike dagger has around 840-860 polys, not a major difference . While I admit your head is better than mine, your body details especially the shoulders and arms look very little like the strike when compared to my models. Plus your models appears to lack the four cone thrusters needed if it is to be used in space battles, which would easily be 30 polys. Does your model have the back skirt, I can't tell?
Also, as I stated in an earlier post, I made my strike in such a way that I could easily edit it to make other models, in this case the Strike Gundam.
I thank you for the advice though, and you are right on the proportions, I even used a blue print from the Rx-79-2 which is very similar in shape, but still the proportions came out odd, yours would be perfect if you stretched the chest and pelvis a bit, as from shoulder to shoulder, the strike dagger is roughly two shoulders in width.
I decided to go back and try to match the proportion up on my model closer to the above pic.
If you weren't put off by my above rant, would you be willing to look over and tell me if you think its closer, or worse?
And could you tell me how to turn smoothing off because I do not know where that is.