Flak Cannon (air_defense_adv) - /pa/units/land/air_defense_adv/air_defense_adv.json

Advanced Anti-Air - Overhead heavy damage. Only attacks air.
{
  "display_name": "Flak Cannon",
  "description": "!LOC:Advanced Anti-Air - Overhead heavy damage. Only attacks air.",
  "TEMP_texelinfo": 9.09853,
  "area_build_separation": 18,
  "atrophy_cool_down": 15,
  "atrophy_rate": 26.66667,
  "base_spec": "/pa/units/land/base_structure/base_structure.json",
  "build_metal_cost": 900,
  "command_caps": [
    "ORDER_Attack"
  ],
  "events": {
    "build_complete": {
      "audio_cue": "/SE/Build_Complete/structure_small"
    },
    "fired": {
      "audio_cue": "/SE/Weapons/structure/air_defense_flak_fire",
      "effect_spec": "/pa/effects/specs/default_muzzle_flash.pfx socket_rightMuzzle01 /pa/effects/specs/default_muzzle_flash.pfx socket_leftMuzzle01"
    },
    "died": {
      "audio_cue": "/SE/Death/structure_small",
      "effect_scale": 0.5
    }
  },
  "guard_layer": "WL_Air",
  "max_health": 2000,
  "mesh_bounds": [
    7,
    7,
    9.4
  ],
  "model": [
    {
      "layer": "WL_LandHorizontal",
      "filename": "/pa/units/land/air_defense_adv/air_defense_adv.papa",
      "animtree": "/pa/anim/anim_trees/air_defense_adv_anim_tree.json",
      "skirt_decal": "/pa/effects/specs/skirt_air_defense_adv.json"
    },
    {
      "layer": "WL_WaterSurface",
      "filename": "/pa/units/sea/air_defense_adv/air_defense_adv.papa",
      "animtree": "/pa/anim/anim_trees/fabrication_turret_anim_tree.json"
    }
  ],
  "nearby_target_tick_update_interval": 3,
  "recon": {
    "observer": {
      "items": [
        {
          "layer": "surface_and_air",
          "channel": "sight",
          "shape": "capsule",
          "radius": 155
        },
        {
          "layer": "underwater",
          "channel": "sight",
          "shape": "capsule",
          "radius": 155
        }
      ]
    }
  },
  "selection_icon": {
    "diameter": 16.0
  },
  "spawn_layers": "WL_AnyHorizontalGroundOrWaterSurface",
  "tools": [
    {
      "spec_id": "/pa/units/land/air_defense_adv/air_defense_adv_tool_weapon.json",
      "aim_bone": "bone_pitch",
      "muzzle_bone": [
        "socket_rightMuzzle01",
        "socket_leftMuzzle01",
        "socket_rightMuzzle02",
        "socket_leftMuzzle02"
      ]
    }
  ],
  "unit_types": [
    "UNITTYPE_Structure",
    "UNITTYPE_Advanced",
    "UNITTYPE_Land",
    "UNITTYPE_AirDefense",
    "UNITTYPE_Defense",
    "UNITTYPE_FabAdvBuild"
  ]
}