Getting the transform from a GameObject list

Alright, so I'm working on an aim assist system, and the hurdle I'm running into is being unable to have the transform from a list of enemies in a box collider zone (which is a child to the camera). Essentially what I'm trying to do is aim a weapon (also a child to the camera) to aim at the closest enemy in the zone. I'm fairly certain I can figure out how to rotate the weapon to the nearest enemy, I already had debug code set up to to test rotating the weapon independent of the camera, but my problem now is I can't get the transform of the nearest enemy from the aim assist script in the camera script to aim the weapon towards it. The error I get is detailed at the bottom.

Code for the camera script:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class CameraLook : MonoBehaviour
 {
     [SerializeField] private float mSensX = 8f;
     [SerializeField] private float mSensY = 8f;
 
     [SerializeField] Transform playerCamera;
     [SerializeField] Transform orientation;
     [SerializeField] PlayerBehavior playerBH;
     [SerializeField] Transform weapon;
     [SerializeField] Transform autoAim; //this is the box collider zone, which has the aim assist script attached to it
 
     float mouseX;
     float mouseY;
 
     float mouseMultiplier = 1.4f;
 
     float mRotationX;
     float mRotationY;
 
     float rotateAmountX;
     float rotateAmountY;
 
     private void Start()
     {
         //
     }
 
     private void Update()
     {
         //Autoaiming debug code starts here
         if (Input.GetKey(KeyCode.L))
         {
             rotateAmountY += 50 * Time.deltaTime;
         }
         if (Input.GetKey(KeyCode.J))
         {
             rotateAmountY += -50 * Time.deltaTime;
         }
         if (Input.GetKey(KeyCode.K))
         {
             rotateAmountX += 50 * Time.deltaTime;
         }
         if (Input.GetKey(KeyCode.I))
         {
             rotateAmountX += -50 * Time.deltaTime;
         }
         //and ends here
 
         MouseInput();
 
         playerCamera.transform.localRotation = Quaternion.Euler(mRotationX, mRotationY, playerBH.cameraCurrentTilt);
         //weapon.transform.rotation = Quaternion.Euler(mRotationX + rotateAmountX, mRotationY + rotateAmountY, 0); //commented out for now, only worked for debug testing
         Quaternion targetDirection = Quaternion.LookRotation(autoAim.closestEnemyInDirection.transform.position - transform.position); //the line where the error appears, I'm not sure if this is even the correct way of getting the results I want, but it's one of a few ways that produces the error. The exact error is written out below.
         orientation.transform.rotation = Quaternion.Euler(0, mRotationY, 0);
     }
 
     void MouseInput()
     {
         mouseX = Input.GetAxisRaw("Mouse X");
         mouseY = Input.GetAxisRaw("Mouse Y");
 
         mRotationY += mouseX * mSensX * mouseMultiplier;
         mRotationX -= mouseY * mSensY * mouseMultiplier;
 
         mRotationX = Mathf.Clamp(mRotationX, -90f, 90f);
     }
 }
 

Code for the aim assist script:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class AutoAim : MonoBehaviour
 {
     public List<GameObject> enemies = new List<GameObject>();
     public GameObject closestEnemyInDirection;
     public Transform body;
 
     Transform closestEnemyTransform;
 
     void Start()
     {
         
     }
 
     public void FindClosestGameObject()
     {
         GameObject closest = null;
         float distance = 400f;
         Vector3 position = body.transform.position;
         foreach (GameObject go in enemies)
         {
             Vector3 diff = go.transform.position - position;
             float curDistance = diff.sqrMagnitude;
             if (curDistance < distance)
             {
                 closest = go;
                 distance = curDistance;
             }
         }
         closestEnemyInDirection = closest;
         
     }
 
     private void OnTriggerEnter(Collider other)
     {
         if (other.tag == "Enemy")
         {
             for (int i = 0; i < enemies.Count; i++)
             {
                 if (other.gameObject == enemies[i])
                 {
                     return;
                 }
             }
             enemies.Add(other.gameObject);
             FindClosestGameObject();
         }
     }
 
     void OnTriggerExit(Collider other)
     {
         if (other.tag == "Enemy")
         {
             for (int i = 0; i < enemies.Count; i++)
             {
                 if (other.gameObject == enemies[i])
                 {
                     if (enemies[i] == closestEnemyInDirection)
                     {
                         closestEnemyInDirection = null;
                     }
                     enemies.RemoveAt(i);
                 }
             }
         }
     }
 }
 

The error I get in the camera script is: 'Transform' does not contain a definition for 'closestEnemyInDirection' and no accessible extension method 'closestEnemyDirection' accepting a first argument of type Transform could be found (are you missng a using directive or an assembly reference?)

Assistance would be appreciated, I'm fairly inexperienced with Unity/C#, and I'm at an impass with this.