Some of this process is similar to creating a melee weapon so check that out for additional screenshots.

Follow the next steps to create a new ranged weapon & attack

• Create a ReloadableWeapon item and set its Image, Name, Description and leave Bulkable = false and ConsumeOnUse = false
• Import the two required animations for the attack to the project: One for the aiming state (when the player holds left trigger) and one for the attack state (when the player presses right trigger). Make sure these animations work with the current player avatar.
• Add the animation clips to the player Animator and give then a reasonable name: e.g. ShotgunAiming, ShotgunFire.

https://lh4.googleusercontent.com/7uYTt82byLvrPidHYezHZbQ0RFZ_xuDVtYk_iukZ96eD_4R3eXSsZ43xfIZjSrWMRdDJzt0oZ5vzr3VEQDAShlabkfqIvjCRdDmpxUhKvZOrVj8x0BewADJHYVgBnzQt9_0gHJ3ZBTuzOLwU5eEDcYXZZoQKI7Z9qeu5dvfwN1te395vNUeKaWXNUg

• Create one AnimationHandle for each animation as explained here.
• Back on your WeaponData. Assign the references to your animator handles in the item data variables AimingAnim and AttackAnim.
• Create a new prefab, which will contain the visuals of your new weapon and add a ShotAttack component at the top level and assign the WeaponData.
• Now assign the AttackType on the Attack variable. The attack defines which Attackables this object will hit and how much damage it deals. You can create more by right clicking Project View Create/Horror Engine/AttackType
• Set the Cast Radius, Max Range, Penetration Hits, and set the LayerMask to Combat. Cast Radius indicates the radius of the line that will be projected from the weapon. Max Range is the maximun distance. Penetration Hits indicates how many targets in a row can this weapon hit.
• Now, to indicate where the bullet comes from, we need a reference to the end of the barrel. For that, we will add a SocketController component at the top level. Create an empty object called Muzzle with a Socket component, located at the end of the barrel and using the existing SocketHandle WeaponMuzzle. Sockets allow us to find points in the hierarchy without using direct references.
• Set the Muzzle as the attack origin as shown

• Add an AudioSource at the top and optionally assign the ShotSound & NoAmmoSound on the ShotAttack component

• Back on the WeaponData. Assign the new prefab on the Prefab property

• Set the AttackDuration initially to be 1. This is how long the attack will be active during shot and also determines the time between shots. The AttackDelay indicated how long passes during the animation before the shot is taken.

• Finally, lets setup the attachment on the character. On your WeaponData, set the socket handle to one of the existing player sockets: PlayerLHand or PlayerRHand.

• Go to the Character prefab and drop your WeaponData on the PlayerEquipment component. This will allow you to preview how the object looks attached to the player

  https://lh5.googleusercontent.com/bnc_DUUwLhKhnpfks0eCWdHUPef2wdydiNmsV_oL1YZJOuL-YFGDjzf-GA8q5TAVN40v9ZW5WjVnydUi7HoltR43NSSR1y9PfmUMpteW6uJdXaX1wPMJhsScXKQ429hx5NMFjQcjkuGsiGkLWzi5Y6trPjR6DjPEes6dhS2Q_HZ-dW_X8qVefXNf1w