Audio source playing different soundfiles

Hello guys,

I am having a rather wierd problem, i am trying to make a FPS in Unity right now and i stumbled over something strange while trying to implement an audiosource which is supposed to play when i shoot a weapon. I have my Player prefab which makes use of the standart Unity FPS Movement script which already contains some sounds (running, landing etc.) and those are working fine. As i said now i am trying to add another sound that gets played when i shoot. This sound is supposed to be played from a Shootingscript;

 public AudioSource gunsound;
 
 void Update()
     {
         if (Input.GetButtonDown("Fire1"))
         {
             gunsound.Stop();
             gunsound.Play();
             Debug.Log("Shoot!");

At this point there is this Script and the linked audio source with the gunsound in the player prefab. Now comes the weird part, when i test it out, using leftclick doesnt make the gunsound, but it repeats the last sound the Player prefab made, e.g. when i walk and make a sound, leftclicking plays that sound, when i land after jumping, leftclicking makes the landingsound etc. Right now i have no idea on what to do anymore.