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_Smoke_Canister.dat
GUID 54409a2f4a544596a5ebe252101b5636
Type Magazine
Rarity Epic
ID 19412
Size_X 3
Size_Y 2
Size_Z 0.55
Amount 8
Calibers 1
Caliber_0 19412
Use_Auto_Icon_Measurements False
Blueprints 2
Blueprint_0_Type Ammo
Blueprint_0_Supplies 1
Blueprint_0_Supply_0_ID 19649
Blueprint_0_Supply_0_Amount 1
Blueprint_0_Build 30
Blueprint_1_Type Tool
Blueprint_1_Supplies 2
Blueprint_1_Supply_0_ID 19649
Blueprint_1_Supply_0_Amount 4
Blueprint_1_Supply_1_ID 19009
Blueprint_1_Supply_1_Amount 2
Blueprint_1_Tool 19375
Blueprint_1_Tool_Critical
Blueprint_1_Build 27