Doolar:
1) Sorry, I installed mine directly into SH3. Worked fine with GWX. Don't know why it wouldnt work though (except for maybe the resolution fix). Try it.
2) The modder is Russian, so if you play in English or German install those files
3) Weapon Officer ID still works fine, although c'mon man crank that realism up
Good luck, the mod functions and looks great. Only wish there was a German version of some of the assets