Fixed plasmagun ammo and reload sound issues

- Added optional c_ models made by ☢ ​​Seaal Mid​​ ☢
- Included fixes that were made back in 2016
- Improved plasma hit particle a bit
- Quick fix for projectiles making multiple damage on hit
- Lowered the chainsaw world hit sound volume

- Added more weapons for NPCs
- Recoded BFG9K
- Improved smoke effect
- Bugfixes

- Added autoreload
- Recoded Chaingun
- Improved shaders a bit
- Improved BFG and Plasmagun dynamic textures
- Recoded viewmodel sway
- Small fixes for NPCs
- Other fixes and improvements

- Fixed Chainsaw hit through grates
- Fixed worldmodel physics
- Improved prediction
- Improved doom3_onlydoomflashlight convar
- Improved weapon bobbing
- Improved normal maps
- Recompiled all models to use different material paths
- A lot of other improvements and bugfixes

- Added worldmodel (3rd person) muzzleflash
- Modified worldmodel materials
- Fixes

- Improved Chaingun fire delay
- Small fixes

- Smoothed some firing anims
- Improved recoil
- Weapons are more faithful now
- Bugfixes

- Fixed Chaingun muzzleflash
- Returned the original firing sounds for Pistol and Shotgun

Small improvements