Hi, I am playing with fragmotion at the moment.Its all new to me so its a long process for me,but i am getting there.I tried other programs with no luck.You can always build your model in the same pose as the as the soilder and merge the GG skeleton.That is what i did in the pic below,ist working ok but needs some tweeking.
The funny thing on the right is mine
.But they both work
Not a good pic but you see what i mean.
Dave