This works fine for me, even despite the patches. Perhaps you guys should try different codes and see of those work? I've been running super speed and 1 hit kill for ToT farming.
I did notice one thing tho, when using 1 hit, you recieve reduced exp rates. For example, I killed a blood hound, usually worth 150 exp (on fine hunger), and only got 57 (on fine), especially despite the 200% exp event going on. This means your weapon's damage is not amplified to do enough damage to kill, but instead they just die, and you only get the exp worth of the damage you dealt. So if you want to exp grind, this mod likely wont help you, as you'll be left with less zombies to shoot at, but the exact same exp rate when hitting them.