Replaces difficulty names and descriptions to those inspired by Deep Rock Galactic.
Previews in images.
Normal - Hazard 1 (Low risk)
Hard - Hazard 2 (Challenging)
Very hard - Hazard 3 (Dangerous)
Overkill - Hazard 4 (Extreme)
Mayhem - Hazard 4.5 (Extreme with a little extra)
Death Wish - Hazard 5 (Lethal)
Death Sentence - Deep Dive (Pray for Karl to rescue you)
One Down - Elite
