I went into expert difficulty expert quick play for fireteam ops. One of the current modifiers is oscillation trade-off. I was using a stasis warlock. Wicked implement Aberration action Vs chill inhibitor and swapped to avalanche as a test. My genetic and heavy weapons got to a 3x weapon decay. No matter how many kills I got in a row with aberration action, the buff would not change. So genetic and heavy were at a 3x decay. While aberration was at a 3 time surge. I can not remember the strike name. But it's the newest one from the final shape. With a tormentor boss fight at the end