MFT in story mode

So I’m currently in Chapter 2 I’ve been trying to find a good horse. I’ve looked up so many horses and found a video on the MFT glitch and thought, well might as well try it since the Albert Mason mission failed miserably. But it did work, I know a lot think it doesn’t because it doesn’t spawn alive first try but I did it around 6-7 times and it worked.