Shooting damage

I'm trying to use ORK Framework with Invector's Third person controller. Because I want to use ORK's character level up, loot and ability system, I must use ORK's HP value. I set ORK's Damage Dealer and Damage Zone in the sword, so It can produce damage effects, but Invector’s gun damage is not known how to set it to become damage. What should I do?

using UnityEngine;
using System.Collections.Generic;

namespace Invector.vShooter
{
[vClassHeader("Decal Manager", openClose = false)]
public class vDecalManager : vMonoBehaviour
{
public LayerMask layermask;
public List decalObjects;

public virtual void CreateDecal(RaycastHit hitInfo)
{
CreateDecal(hitInfo.collider.gameObject, hitInfo.point, hitInfo.normal);
}

public virtual void CreateDecal(GameObject target, Vector3 position, Vector3 normal)
{
if (layermask == (layermask | (1 << target.layer)))
{
var decalObj = decalObjects.Find(d => d.tag.Equals(target.tag));
if (decalObj != null)
{
RaycastHit hit;
if (Physics.SphereCast(new Ray(position + (normal * 0.1f), -normal), 0.0001f, out hit, 1f, layermask))
{
if (hit.collider.gameObject == target)
{
var rotation = Quaternion.LookRotation(hit.normal, Vector3.up);
// instantiate hit effect particle
if (decalObj.hitEffect != null)
{
var effect = Instantiate(decalObj.hitEffect, hit.point, rotation)as GameObject;
effect.transform.SetParent(vObjectContainer.root,true);
}

// instantiate decal based on the gameobject tag
var decal = decalObj.GetDecal();
if (decal != null)
{
var _decal = Instantiate(decal, hit.point, rotation) as GameObject;
_decal.transform.SetParent(target.gameObject.transform,true);
}
}
}
}
}
}

[System.Serializable]
public class DecalObject
{
public string tag;
public GameObject hitEffect;
public List decals;

public GameObject GetDecal()
{
if (decals.Count > 1)
{
var index = Random.Range(0, decals.Count - 1);
return decals[index];
}
else if (decals.Count == 1)
return decals[0];
else
return null;
}
}
}
}