Because the game is a piece of ****.
I was playing, just began the game, like 10 seconds in, I got the first kill. Host Migration, the guy was then back alive, behind me, and killed me. I was so happy and joyful.
Many times when I have a good game going, like 17-3 or something, the host migration screen comes up and pow "you lost connection". Yea it is partly fault of the losers who quit the game (I think), but it also svcks that a brand new game can't even do these simple ****.
And at this moment now I am in the Lobby, waiting for over 10 minutes for a game, but nothing at all.