I hear you. Turned is bare: you can sprint and attack as a zombie, but have no way to flank or outmaneuver the human. If the arena was larger and more complex with actual objectives or more zombies, it would make more sense. The power up idea working to the benefit of the zombies is a cool feature, but implemented in a game mode that is sparse and unlikely to attract too many fans.
F2000 was an unholy weapon. Respect it, and it harvested souls for you. Treat it like the mortal SCAR-H, and it would devour you.