I know this is going to sound ridiculous but I want to know the math behind the operation XP and the prestige system. Gene seed and quick match bonus are pretty simple. Round down to the nearest multiple of 5 based on 30% and 20% respectively. But I can't figure out the extermination bonus and prestige bonus. I believe extermination bonus is 20% of difficulty XP + quick match bonus if applicable then prestige bonus is applied to difficulty +quick match bonus based on prestige level (10% per level). That math worked for Absolute difficulty for prestige 1 but not substantial prestige 2. Anyone know how the math?