Change Notes:
Additions
- Overhauled main menu
- Added camera transitions to main menu
- Removed black bars from main menu
- Reduced volume of gunshot sound effects
- Added weapon workbench
- Added three new weapons (AK47, AR4 and PLASMA)
- Added credits economy system
- Changed siren sound effect
- Reduced volume of siren
- Increased time between ammo crate spawns.
- Reduced overall amount of ammunition in ammo crates.
- Added a credits counter that keeps track of how many credits the player earns
- Added fire effect to exploding zombies
- Added separate firing effects for each weapon