Assign player prefab

Persetons

Hello, I want to assign my in the multiplayer game player to the place in the picture. I assign player to "Character" object and I have to delete player from the hierarchy for instantiate player to game. Therefore, the player becomes unassigned. But zombies are not prefab. This is my Script page. Anyone can help me?
https://ibb.co/8DPThSd
https://ibb.co/6NhwJxZ
https://ibb.co/60ZD2wk

JohnTube

closing this one as duplicate