I have no modding experience, however how difficult would these be.

For the combat helmet, making the light work like the mining helmet? The lights there, it just doesn't function.

Second, heavy combat armor shoulders. I would like to see the model more like the opening live action scene where the bulky part is more on the shoulder than floating like the in game model.

I wanted to recreate that pre war Army soldier look, but the heavy combat shoulders mess it up by being to bulky instead of flatter against the shoulder like in the live action intro.

Here's a screen grab of what I mean.
http://i.imgur.com/kpUsfxC.jpg