So in certain places, most notably the big waterfall in forge world and Winter Contigency in campaign. These things all cause the audio to get incoherently scratchy and laggy.
Also in Campaign if I do online coop at all I get massive amounts of control delay. When Im hose im just fine but then everyone else in the lobby suddenly suffers the issue. Ive had this issue on MCC for several years both on xbox and now PC and have moved several times and had several different internet providers over that time, always persists.