Ok so im trying to make a army looking army set and im useing the army jump suit from anchorage and a vest i got from another mod the probalem is i got it to look good and be perfect but when i changed the model of what it would look like on a person the vest was a little inside the body so i went back into nifskope and changed it up and used the scale button on the vest and then changed the model in the geck again but it didnt seem to have any effect so i tried it several more times and it never seemed to change so can any help me out this cause this is my first time usring nifskope to change my armor instead of a gun

You probably need to use a 3d tool like Blender to modify the armour and maybe reweight it as it seems Nifskope is not enough.

yep

as the mesh is skinned, applying transforms in nifskope will break it.

alright so how do i use blender are there any good guides well thx guys cause it was pissing me off well i guess ill go and give blender a try