i think he means:
fuel bunker contains fuel.
if the fuel bunker is hit the ship will explode.
the cargo bunker contains fuel.
therefore... if the cargo bunker is ****, the ship should go KABOOOOOOM!
also, the fuel (cargo) bunkers, altho not connected to the fuel(standard) bunkers... are still "fuel bunkers"... (i didn't loose any of you in the explanation, did i
)