I absolutely loved the TDM mode.
Nobody was spectating you, no pressure from team mates, instant respawn, all weapons available for trying out... all this and more made for a more relaxed gaming experience (more so than Frenzy). Waaay less toxicity and venom than Push or Firefight or Skirmish and even Coop.
When is it coming back ?
I think you were completely bonkers to remove TDM from the game when you did !