Nice to see that one of my thread is back to life!

EDIT:
Thehiredgun, You have a PM. Buckup Your orginal
"GUNS_SUB.sim" file from
Library folder. You should backup only this one file. Then paste my
"GUNS_SUB.sim" file into "Library" folder and also my four new files:
"Shells XXI" DAT,
"Shells XXI" ZON,
"Shells XXI.dsd" and
"Shells XXI.sim"
This is all, but don't install this mod in "mid patrol". Is better to install this mod, like everything else, when You start a new career for best secure.