Some gameplay changes

Mercenaries! We have made the following gameplay adjustments to Hired Ops:

• Clan experience and BG (clan currency) received for completing clan contracts doubled.
  
• Enhanced mine - cost increased to 100, delay to next purchase increased to 90 seconds.
  
• Flash grenades - cost increased to 30 for sniper and scout.
  
• Arrow projectile (stormtrooper ammo for shotgun) - bonus to optimal range reduced to 50%.
  
• HK243 - damage increased to 40.
  
• SPAS-12 - damage reduced to 260.