Hey TTG, I'm hosting Tangy's mod menu!
All credit goes to KLST Tangy for creating the mod menu.

Part 1: (Join me first!)
thy dowulays

*After joining part 1, back out and go to split screen. Start the game with no settings changed, then join part 2. The game will kick you prematurely.

Part 2: (This will take at least 5 minutes; be patient.)
RandomSmurfling

Now, to see if it worked, go into a private match and press RB.

If you want to infect other people:
In the R2R Menu on the Mod Menu, Press Give Part 1.
Now back out, and go to a private match.
You will now be giving part 1.

Then, for Part 2, go to the R2R Menu once again, and do start infection.
This will take 5 minutes, don't press start infection by accident; you will have to wait.

Thanks TTG!