[
  {
    "type": "monstergroup",
    "id": "GROUP_CENTRAL_LAB",
    "monsters": [ { "monster": "mon_zombie_bio_op", "weight": 20, "cost_multiplier": 50 } ]
  },
  {
    "type": "monstergroup",
    "id": "GROUP_LAB",
    "default": "mon_zombie_scientist",
    "monsters": [ { "monster": "mon_zombie_bio_op", "weight": 50, "cost_multiplier": 5 } ]
  },
  {
    "type": "monstergroup",
    "id": "GROUP_LAB_SURFACE",
    "default": "mon_zombie_scientist",
    "monsters": [ { "monster": "mon_zombie_bio_op", "weight": 50, "cost_multiplier": 5 } ]
  },
  {
    "type": "monstergroup",
    "id": "GROUP_LAB_SECURITY",
    "default": "mon_zombie_labsecurity",
    "monsters": [ { "monster": "mon_zombie_bio_op", "weight": 50, "cost_multiplier": 5 } ]
  },
  {
    "type": "monstergroup",
    "//": "Used in the military bunker",
    "id": "GROUP_MIL_BASE",
    "monsters": [ { "monster": "mon_zombie_bio_op", "weight": 20, "cost_multiplier": 50 } ]
  },
  {
    "type": "monstergroup",
    "id": "GROUP_MAYBE_MIL",
    "monsters": [ { "monster": "mon_zombie_bio_op", "weight": 20, "cost_multiplier": 50 } ]
  },
  {
    "type": "monstergroup",
    "id": "GROUP_MIL_STRONG",
    "//": "Used in the military bunker, LIXA and Hub01 convoy ambush",
    "monsters": [ { "monster": "mon_zombie_bio_op", "weight": 20, "cost_multiplier": 50 } ]
  },
  {
    "id": "GROUP_MIL_EXTRA",
    "type": "monstergroup",
    "monsters": [ { "monster": "mon_zombie_bio_op", "weight": 4 } ]
  },
  {
    "type": "monstergroup",
    "id": "GROUP_BUNKER",
    "monsters": [ { "monster": "mon_zombie_bio_op", "weight": 150, "cost_multiplier": 10 } ]
  }
]
