Below is a demonstration video from his YouTube Channel, included are both a PS4-Elf-Loader.exe with the PS4 Payloads and a SilentShadowV2.elf and from the How to use.txt file to quote:
Inject .bin files (payloads):
1. Open up .bin loader on the Exploit page.
2. Inject .bin file.
Inject .elf files:
1. Start Game.
2. Open up .bin loader on the Exploit page.
3. Chose Game Process Name (default_mp.elf or eboot.bin)
4. Inject .elf file.
Call Of Duty: MWR, AW, IW, GHOSTS, WW2 (default_mp.elf);
This is more or less a "Developer's Edition" of Brutal PS4 DooM v2. It's difficult but it's possible to beat. I hope you enjoy. Special thanks to @DEFAULTDNB for closed alpha testing
I wanted to show off this insane way of real time editing basically anything on call of duty. There are a lot more things you can do with this that I am yet to explore.
The name came from a halo tool on Xbox 360, some of you might have seen it before.