This item is not included in any spawn asset, but it doesn't necessarily mean that it doesn't spawn naturally on any of the maps.
PS_Beacon_0.dat
GUID df0208ea49cc49619af13de09aa2c554
Type Beacon
Rarity Legendary
Useable Barricade
Has_Clip_Prefab False
Build Beacon
ID 19726
Size_X 3
Size_Y 4
Size_Z 0.7
Health 650
Range 4
Radius 2
Offset 1.425
Explosion 19056
Unpickupable
Blueprints 1
Blueprint_0_Type Utilities
Blueprint_0_Supplies 7
Blueprint_0_Supply_0_ID 19011
Blueprint_0_Supply_0_Amount 2
Blueprint_0_Supply_1_ID 19514
Blueprint_0_Supply_1_Amount 1
Blueprint_0_Supply_2_ID 19512
Blueprint_0_Supply_2_Amount 1
Blueprint_0_Supply_3_ID 19550
Blueprint_0_Supply_3_Amount 2
Blueprint_0_Supply_4_ID 19622
Blueprint_0_Supply_4_Amount 2
Blueprint_0_Supply_5_ID 19621
Blueprint_0_Supply_5_Amount 3
Blueprint_0_Supply_6_ID 19618
Blueprint_0_Supply_6_Amount 3
Blueprint_0_Tool 19376
Blueprint_0_Build 27
Wave 100
Rewards 1
Reward_ID 20950
PlacementAudioClip core.masterbundle:Sounds/MetalPlacement.mp3
Allow_Placement_Inside_Clip_Volumes True