Have been playing a lot of Ops over the past few days in split-screen (Xbox One, Europe) and lag has been worse than ever before with the influx of new players over the holidays.
I found in a series of games that Footsoldier seemed affected particularly badly, with primary fire often feeling like it wasn't landing (though believe the shots were registering) & ZPG animation cut short / partly skipped & NO shot registering.
A number of games where I was playing Snapdragon with others doing the same affected the animations; damage was often not recorded & the games frequently slowed down until they felt like a video being played frame by frame - REALLY awful to play.
