How to change the texture of a Unity object in C#?

Question

C++ / C#

How can I change the texture of all Zombie objects in C#?

Zombie[] array = UnityEngine.Object.FindObjectsOfType(typeof(Zombie)) as Zombie[];
Zombie[] array2 = array;
foreach (Zombie zombie in array)
{
 zombie.gameObject.GetComponent<Renderer>().material.mainTexture =   args.sender.player.gameObject.GetComponent<Renderer>().material.mainTexture;
}

Есть ли здесь ошибка ?