: This file is for JO IC4 This file was made by LST it changes the sniper rifles to now show ranges so you don't have to use the binoculars to find elevations and ranges, also allows the mp5 to shoot under water. Just place this file Weapons.def into your jo expansions folder in the ic folder. the file is zipped up in a folder to save space unzip the file to your desktop then place the file not the folder. how to install it. right click my computer -explore-C:/ - program files - novalogic - joint ops typhon rising - expansion- ic place it in the ic folder. poof your done.