Successfully complete the indicated task to unlock the corresponding weapon:
  AKS-49: Get 150 kills with the CMG in Multiplayer mode. 
  ARM-5: Successfully complete Story mode Level 3. 
  Bushwacker LMG: Get 400 kills with Bushwacker. 
  Bushwacker ML: Get 400 kills with Bushwacker. 
  Bushwacker Slug: Get 400 kills with Bushwacker. 
  CMG: Get 150 kills with the ARM-5 in Multiplayer mode. 
  D2 Crossbow: Get 275 headshots in Multiplayer mode. 
  Disruptor ML76: Successfully complete Story mode Level 4. 
  Enforcer M8: Successfully complete Story mode Level 2. 
  GL32: Get 150 kills with Finn Cooley in Multiplayer mode. 
  HSK PSU .45: Successfully complete Story mode Level 1. 
  Rhino: Get 150 kills with the the HSK PSU .45 in Multiplayer mode.