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_XM1_HE_Missile.dat
GUID dd2114adb6124bb0a395b04cdd9e94b3
Type Magazine
Rarity Legendary
ID 10523
Size_X 5
Size_Y 2
Size_Z 0.425
Tracer 12007
Amount 1
Calibers 1
Caliber_0 10707
Player_Damage 260
Zombie_Damage 260
Animal_Damage 260
Barricade_Damage 3390
Structure_Damage 3390
Vehicle_Damage 500
Resource_Damage 222
Object_Damage 2000
Explosion 19020
Explosive
Range 20
Use_Auto_Icon_Measurements False
Delete_Empty
Blueprints 3
Blueprint_0_Type Gear
Blueprint_0_Supplies 1
Blueprint_0_Supply_0_ID 10524
Blueprint_0_Supply_0_Amount 1
Blueprint_0_Outputs 1
Blueprint_0_Output_0_ID 10523
Blueprint_0_Output_0_Amount 1
Blueprint_0_Build 27
Blueprint_1_Type Tool
Blueprint_1_Supplies 5
Blueprint_1_Supply_0_ID 10526
Blueprint_1_Supply_0_Amount 1
Blueprint_1_Supply_1_ID 10525
Blueprint_1_Supply_0_Critical
Blueprint_1_Supply_1_Amount 1
Blueprint_1_Supply_2_ID 19378
Blueprint_1_Supply_2_Amount 5
Blueprint_1_Supply_3_ID 19680
Blueprint_1_Supply_3_Amount 5
Blueprint_1_Supply_4_ID 19036
Blueprint_1_Supply_4_Amount 1
Blueprint_1_Outputs 1
Blueprint_1_Output_0_ID 10523
Blueprint_1_Output_0_Amount 1
Blueprint_1_Tool 19375
Blueprint_1_Build 27
Blueprint_2_Type Tool
Blueprint_2_Supplies 1
Blueprint_2_Supply_0_ID 10523
Blueprint_2_Supply_0_Amount 1
Blueprint_2_Supply_0_Critical
Blueprint_2_Outputs 4
Blueprint_2_Output_0_ID 10526
Blueprint_2_Output_0_Amount 1
Blueprint_2_Output_1_ID 10525
Blueprint_2_Output_1_Amount 1
Blueprint_2_Output_2_ID 19378
Blueprint_2_Output_2_Amount 3
Blueprint_2_Output_3_ID 19680
Blueprint_2_Output_3_Amount 3
Blueprint_2_Tool 19375
Blueprint_2_Build 27