I doubt it. It most likely changes the code so it won't take away any ammo. Anyways there is a reason the PS3 save file isn't going to open in Xplorer360... The hint is in the name. That program is ONLY used to view the content on the 360's HDD. Also the save files on 360 are way different than on PS3. They are encrypted and signed. It's not like I could just open up a 360 save file in notepad and view it the coding or content in it. What modio does is reads the save file, replaces the code with the mods, Rehashes and Resigns it (as if it hasn't even been modded) and then you go back into Xplorer360 and put the game save back in. So long story short.. You can't and will never be able to mod the PS3 game saves with modio. Especially sense the team who made modio only has a 360 and only codes for 360's. You would need a new program or not even that. The PS3 saves could just simply be edited in notepad and we can assume it's based off Modern Warfare saves then we just need to figure out the coding needed to mod it. Anyways, Like I said your not gonna be able to mod the save. You will give up before you even make any progress.