Sound Effects
Description
To make my game feel more complete, I added a few sound effects to my game. I would have ideally wanted to implement even more, however, due to time constraints I was unable to do so. I sourced all of my sounds from FreeSound—every sound published on this website is published under the Creative Commons licences that allow the re-use of these sounds within any projects.
Weapon Sounds
These sounds are all one-shot audio clips within the scene. These sounds are played by calling PlayOneShot() on the Player's Audio Source Component.
Shotgun
I only managed to add one sound to my shotgun, played as a one shot whenever it is fired in-game.
Pistol
I added two sounds to the pistol Game Object in my project, one for firing and one for reloading.
Firing Sound
Reloading Sound
Environment Sounds
These sound effects are set up by having an Audio Source component attached to the Game Object that will be playing these sounds. I have changed the value of the Audio Source component's "Spatial Blend" variable to maximum, so that it gets louder / quieter depending on distance from the player:

Campfire
I added a simple looping campfire sound effect, added to the campfire(s) in my scenes.
Portal
I added an ambient sound effect to my portal(s) within my scenes.