In Everybody Loves Hugo ben, richard and miles go off to get C4 to blow up the plane so they cant leave on it. However by the time they get to the C4 everyone else has trekked around, been to the hydra island, decided not to use the plane, got on the submarine, sunk the submarine then locke rowed back again before they even left the barracks. My question is what have they been doing? How come they were so slow in getting the C4 when they were supposedly taking a shortcut? Or was that just ben working for locke somehow? it doesn't seem to add up.