I'm using Horizon to extract save files from my USB flash drive (formatted for my XBox 360), mod them in Gibbed's Borderlands 2 Save Editor, and try to inject them back in using Horizon again. The problem lies when I try to inject them. When I choose the modded save file to inject back to the USB drive, I get an error message that pops up that says, "Invalid STFS Package!"
Does anyone have any idea how to get this damn thing to work properly?
For the record: I've already beaten the game three or four times (different characters) and would like to just annihilate everything that moves instead of just destroying.