I just rechecked, and seems the rephacks on IMG ID have been altered on GC sometime during or after the last update, cause that method used to work just fine before that.
IMG ID used to leave Hacker rep untouched, while moving Outcast rep to -0.7 hostile. Now, however, it moves Outcast rep to -0.9 (Which is good, means the Hunter double bribe wont be needed) but also moves the Hacker rep to -0.3 (Which is bad, meaning you'd have to go for a blindshot on Barrier cause the Hacker NPC there won't talk to you, while offering both Outcast & Hacker bribes randomly, and if you're not lucky enough it might result in wasting a million or two.) Long story short - Check the method for Cast Guard again, I altered it a bit to work with the current rephacks on IMG ID.
On another note: Updated BHG Core method, thanks to Stoat.