parts of FPS scripts for Zombie Shooter

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class ZombieController : MonoBehaviour {
    [HideInInspector]
    public Animator animator;
    [HideInInspector]
    public bool alive = true;
    private GameObject player;
    public AudioClip[] ZombieSounds;
    public int health;
    private float offsetRot;
    private Vector3 startRot;
    void Awake () {
        startRot = transform.eulerAngles;
        GetComponent<AudioSource> ().clip = ZombieSounds [Random.Range (0, ZombieSounds.Length)];
        GetComponent<AudioSource> ().enabled = true;
        int walkMode = 0;
        animator = GetComponent<Animator> ();
        animator.SetInteger ("Walk", walkMode = Random.Range (0, 3));

        if (walkMode == 0) {
            Vector3 v = transform.eulerAngles;
            offsetRot = 13;
            v.y += offsetRot;
            transform.eulerAngles = v;
        }

        if (walkMode == 2) {
            Vector3 v = transform.eulerAngles;
            offsetRot = -8.6f;
            v.y += offsetRot;
            transform.eulerAngles = v;
        }

        player = GameObject.Find ("Player");
    }


    public void Strike(int damage)
    {
        player.GetComponent<FPS>().HealthVoid (damage);
    }

    public void CloseToPlayer(Transform target)
    {
        if (animator.GetInteger ("Attack") == -1) {
            transform.LookAt (target);
            Vector3 rot = transform.eulerAngles;
            startRot.x = 0;
            rot.y += offsetRot;
            startRot.z = 0;
            transform.eulerAngles = rot;
        }
    }

    public void FirstAttack()
    {
        animator.SetInteger("Attack", 1);
    }

    public void OffsetPos(int number)
    {
        transform.Translate (-number*Time.deltaTime,0,0);
    }
    public void Death()
    {
        alive = false;
        animator.enabled = true;
        animator.SetInteger ("Death", 1);
        GetComponent<AudioSource> ().enabled = false;
        GetComponent<ZombieObst> ().enabled = false;
        GetComponent<ZombieController> ().enabled = false;
    }

    public void AnimOff()
    {
        animator.enabled = false;Destroy(gameObject, 3);
    }
}