Modern Guns

Added Rocket Launchers
Added the Rocket Launcher tier of guns
They are long-range, explosive guns--more expensive than grenade launchers

Updated Models for M4 Carbine, AK47, FN-Scar, and Spas 12
The models for these guns have been improved

Renamed the M4 Carbine to the M4A1
Goes along with the model change, all old M4 Carbines will still exist and look as they did before
The stats of the two guns are identical

Fixed Thompson Machine Gun and MP5 saying they were Assault Rifles
This was purely a visual issue, didn't actually affect the ammo of the gun

Fixed Pistol Magazines not saying they were used in SMGs
Also only a visual issue

Removed unused legacy files
Wern't being used anyways, their removal will result in fewer errors in the console

Fixed swapped Remington 870 and M1A Recipes
The recipes for the Remington 870 and M1A were swapped

Tweaked Revolver Bullets recipe
It has been changed (same resource to ammo ratio) to use less ingredients
This is to prevent conflicts with the GBG grenade crafting recipe