Complex sentence: Instead a new game mode called Turned is introduced, where three players can play as the zombies and must kill a lone human player so that they will spawn as a human and will have to fend off the undead players.
Split into simpler sentences: Instead a new game mode called Turned is introduced, where three players can play as the zombies and must kill a lone human player. The player that succeeds will then spawn as a human and will have to fend off the undead players.