How do i change a bool to true on collide when the bool is on a different script

Self explanatory but here is my scripts.
using UnityEngine;
using System.Collections;
using UnityEngine.Networking;

public class Spawnold3 : MonoBehaviour
{
    public GameObject AssaultPlayer;
	public GameObject ReconPlayer;
	public static bool Support = false;
	public static bool Engineer = false;
	public GameObject EngineerPlayer;
	public static bool tron = false;
	public GameObject TronPlayer;
    public Transform[] spawnPoints;
    public Camera spawnCam;
    public AudioListener spawnListener;
    public bool spawned = false;
	public static Spawnold3 instance;

	void Start(){
		instance = this;

	}

    void OnGUI()
	{
		if (Network.isServer || Network.isClient) {
			if (!spawned) {
				if (GUI.Button (new Rect (Screen.width / 10 - 50, Screen.height / 10 - 25, 100, 50), "assault")) {
					SpawnAssault ();
				}
				if (Support ==true)
				if (GUI.Button (new Rect (Screen.width / 10 - 160, Screen.height / 10 - 25, 100, 50), "support")) {
					SpawnSupport ();
				}
				if (Engineer == true) {
					if (GUI.Button (new Rect (Screen.width / 10 - -60, Screen.height / 10 - 25, 100, 50), "Engineer")) {
						SpawnEngineer ();
					}
					if (tron == true) {
						if (GUI.Button (new Rect (Screen.width / 10 - -60, Screen.height / 10 - 25, 100, 50), "tron")) {
							Spawntron ();
						}
					}
				}
			}
		}
	}
    void SpawnSupport()
    {
        spawned = true;
        int random = Random.Range(0, spawnPoints.Length);
		Network.Instantiate(ReconPlayer, spawnPoints[random].position, spawnPoints[random].rotation, 0);
        spawned = true;
        spawnCam.enabled = false;
        spawnListener.enabled = false;
        spawned = true;
    }
	void SpawnEngineer()
	{
		spawned = true;
		int random = Random.Range(0, spawnPoints.Length);
		Network.Instantiate(EngineerPlayer, spawnPoints[random].position, spawnPoints[random].rotation, 0);
		spawned = true;
		spawnCam.enabled = false;
		spawnListener.enabled = false;
		spawned = true;
	}
	void SpawnAssault()
	{
		spawned = true;
		int random = Random.Range(0, spawnPoints.Length);
		Network.Instantiate(AssaultPlayer, spawnPoints[random].position, spawnPoints[random].rotation, 0);
		spawned = true;
		spawnCam.enabled = false;
		spawnListener.enabled = false;
		spawned = true;
	}
	void Spawntron()
	{
		spawned = true;
		int random = Random.Range(0, spawnPoints.Length);
		Network.Instantiate(TronPlayer, spawnPoints[random].position, spawnPoints[random].rotation, 0);
		spawned = true;
		spawnCam.enabled = false;
		spawnListener.enabled = false;
		spawned = true;
	}

    public void Die()
    {
        Screen.lockCursor = false;
        spawned = false;
        spawnCam.enabled = true;
        spawnListener.enabled = true;
    }

}

Here is my choos random object and spawn script but i want to make it so the object that spawns has a script to it so that when it collides with something it will change a bool to true. which in my case is a case opener that when it collides it sets the bool to true so you can use that class.

using UnityEngine;
using System.Collections;

public class CaseChooseRandom : MonoBehaviour {

	public Transform[] teleport;
	public GameObject[] People;
	public GameObject[] Explosion;

	public void Start(){ //this will spawn only one prefeb, if you want call it many time, create  a new function and call it or create for loop

		if (CaseOpen.HasCase == true) {
			int tele_num = Random.Range (0, 1);
			int People_num = Random.Range (0, 1);
			int Explosion_num = Random.Range (0, 1);

			Instantiate (Explosion [Explosion_num], teleport [tele_num].position, teleport [tele_num].rotation);
			Instantiate (People [People_num], teleport [tele_num].position, teleport [tele_num].rotation);
			GameObject.Find ("weaponBox").SetActive (false);
			CaseOpen.HasCase = false;

		if (CaseOpen.HasCase == false) {
				
				GameObject.Find ("UINOCase").SetActive (true);

			}
		}
	}
}

Remove the static, Instead get a reference to Spawnold3 like this

Spawnold3 spawn = gameObject.GetComponent<Spawnold3>;
spawn.support = true;

Edit: I do not know if this is an option for you but it is a public variable can this be set in the inspector?

Note: Make your non-static varibles lowerCamelCase.

@MAVINA
ANSWER PLEASE