1
Cheapest way in
×6
×6Incendiary Rocket137.5 HP per hit
Sulfur1,800
sulfur ore
sulfur oreTime31sto get in
BenchWB2to craft
137.5 HP per hit · 6 hits on 750 HP−75 HP overkill
Not a raid targetPlayers don't spend boom on this. They leave it, or shoot it if it's shooting at them.
Compare tools
11 tools · full bar = 4× the bestSort
ToolBench
Incendiary RocketWorkbench 2WinnerCheapest sulfur×61,800 BestWB2
Explosive 5.56 Rifle AmmoSemi-Automatic Rifle · Workbench 3×2506,250 ×3.5WB3
Timed Explosive ChargeWorkbench 3Fastest×36,600 ×3.7WB3
Mortar ShellMortar · Workbench 2×257,500 ×4.2WB2
RocketWorkbench 3×68,400 ×4.7WB3
Propane Explosive BombPlaced · Workbench 2×109,000 ×5WB2
Satchel ChargeWorkbench 1 · ~24 with duds×199,120 ×5.1WB1
High Velocity RocketWorkbench 2×469,200 ×5.1WB2
Beancan GrenadeThrown · Workbench 1 · ~105 with duds×8910,680 ×5.9WB1
F1 GrenadeThrown · Workbench 2×42925,740 ×14WB2
40mm HE GrenadeMultiple Grenade Launcher · Found in lootLoot only×42LootWhy ×6?
How the game gets the number
750 HP÷137.5 per hit=5.45→ round up →×6Fire keeps burning after it lands, which the game files don't spell out, so 137.5 HP each is worked out from the burn, not a single hit.
Raw components
for 6× Incendiary Rocket
Intermediates flattened into raw components (gunpowder, explosives, low grade).