Add Back The Old Arcade Weapons

The old arcade weapons like in the versions before version 3.0, like the BFG from Doom or impulse rifle from HL2 or even add HL1 and HL2 weapons.

Edit by admin (Desoroxxx):

- Change title (Previously "Add the old Arcade Weapons")

- Formatted text and title
- Changed board to Addons
- Added MWC Arcade tag