Fixed Recoilless rifle holstering in the wrong place

More Assassin tweaks

• Fixed assassins breaking blocks on first attack
  
• Assassins no longer spam lunges, and are more defensive as a result
  
• Assassins have more diversity in their select weapons

Assassins were a little too excited with their new move set, and have received a few tweaks to be more tame.

• Stage separated to be more modular with other workshop items
  
• Fix for mortar being C4'd with any offhand weapon
  
• Recoilless rifle has been revamped as a held throwable with a new model
  
  • Weapon has only one round, but more can be added with thrown ammo bonuses
    
  • Weapon has a firing animation
    
  • Warhead now gibs anyone when corpus is broken, and heavily damages succeeding corpus block
• Assassins now have a new melee moveset for one-handed and two-handed weapons
  
  • Assassins can perform their first attack from farther away, allowing for improved first strike ability
    
  • Last attack in combo performs a special strike
    
  • Assassins have 25% chance to spawn with a Ninjato, using a special reverse grip moveset
• Officers have a new distinctive voice

• Made Barrel Core fix for Nevadean Chopper (your existing choppers in inventory need to be replaced or fixed in workbench!)
  
• Fix for Overwatch not firing after the first shot

Mortars now require C4 dropped from Pointmen to be executed with a bomb

• Attempting an execution on a mortar without C4 will result in being thrown off
  
• Pointmen always carry spare charges on them
  
• C4 will always be held in your off hand, and is treated as being unarmed. Won't break or encumber your swings.
  
• More powerful explosion when Mortar is destroyed with this method

Mortar death animations occupy correct slots with animation set fix

• Mortars given a tiny extra amount of armor to prevent being gibbed by high caliber weapons
  
• Mortars now properly play death animations when killed.
  
  • If killed with a round through the body, Mortars will detonate immediately

• Commandos have new potent rifle bash attack
  
• Fixed issue where pistol whipping was incredibly slow
  
• Mortars that are taken out by non-executions can now explode more violently, damaging those nearby

• Made all necessary offhand/throwable conversions
  
• Fixed Officers not attacking, and gave them blast resistance as consolation for friendly mortar fire