Using the Quiet Player Pack Mod - Which you can grab over here - http://www.nexusmods.com/phantompain/mods/6/?
We send her out on missions to infiltrate other rivals FOB's! This will be a series and is already on its 3rd episode. Who knows, when I finish this series there may be other Diamond Dog members to send out in their own adventures!
FYI for her Rifle you actually cannot get the custom Renov she uses. (From what I can tell) But by taking the M2000 putting a Renov Barrel and then painting it black you can get something that looks and performs similar!