XII. Spec/Retry

1) No player shall enter spectate to avoid death.
2) No player shall reconnect or leave the server and come back to avoid death.
3) No player shall reconnect or leave the server and come back to play again in the same round.
4) Above applies to all servers for all players, should not be confused with allowing zombies to teleport to avoid death.

As I see it, your leaving then coming back the beginning of the round is your way of avoiding death. You're becoming a zombie without being knifed, thus pretty much guaranteeing you several kills with a perfect ratio.

Stop worrying about your rank and become a zombie the natural way.