Muskets Overhaul

Minor Changes Enemies should hold the musket better, before this change their aim looked a little broken

• Now the musket displays properly when held by other entities    (big thanks to Ojuriasu)

Minor Changes to backslot positions.

Several adjustments made to the Musket with scope.

• Changed Right Hand Position for every rifle
• Moved the scope on the musket to fix a clipping issue