>>713227062 (OP)
Only normalfags gave a shit about Halo, it died the moment COD became more casualized and modernized than Halo. If you ask me, Halo seems to finally be finding its wings starting with Infinite's campaign given that like the first Halo, CE, it started incorporating elements from FPSs before it that came to PC and Nintendo home consoles. I hope with the CE remake and Infinite successor, they lean more into that and move away from the casualized bullshit for retards they pushed in 2004 on up.
>>713227062 (OP)
Same reason nobody plays Quake, or Unreal, or Goldeneye, or Perfect Dark, or Turok anymore.
Doom is doing okay nowadays but that's only the nuDoom single player. You have people playing Doom WADs but that's still relatively niche.
The only shooter franchise from that era that's still thriving is Counter-Strike.
>>713227062 (OP)
343i has jerked people around for over ten years in a vicious cycle of exploiting their nostalgia and promising to do better, only to throw it all out the window and piss on their fans with each successive game. You can only do that so many times before people sense a pattern and leave.