Patch 0.5.0.1 - Campaign-progress fix and numerous tweaks

Gameplay

• Added lose-condition to Banshee Inspection map to prevent cheating
• 120mm missile turrets are now more trigger-happy

Visuals

• Added more grime to OBA-fighter materials
• Polished 60mm and 120mm muzzle-flashes (added smoke to 120mm)
• Reduced apparant size of muzzle-flashes at long distances
• Thruster-effect on OBA freighters are now animated
• Corrected light-color of 60mm missile muzzle-flashes
• Smoke-effect on disabled frigates is now more dense and dark

Bugs

• Fixed issue with campaign-progress being lost if a completed mission is played again