Added Bullet tracers and muzzle flashes to all the guns Except the suppressed ones

1. Fs SCAR-18 now has a 20-round magazine ✅
2. AK-74M will now use a 5.45x39mm cartridge ✅
3. SVCH-54 will now use a 7.62x54mmR cartridge ✅
4. Added 7.62x51mm NATO cartridge (.308win) ✅
5. Removed the 5.56x39mm cartridge due to uselessness ✅
6. Mossberg 500 Shotgun firing impact reduced a little and thats it