Certain Loadouts occasionally are used to counter particular situations, such as countering a galleon with lochnagar Flaks. The example in this case is a Galleon. If the gunner brings ammunition such as greased, lesmok, and heatsink, and then switches the greased and the heatsink for charged and Lochnagar, the change can cause an unexpected advantage, as beforehand, the Heavy Flaks wouldn't be as much of a perceivable issue, but with Lochnagar, it starts to become worrying, as Lochnagar heavy flaks one-shot any ship that is not a Galleon (or Goldfish if it has no damage or barely any on its permahull), thus the other team might have long range such as a hades and a lumberjack, along with an artemis or so, but they wouldn't be worried as much, due to the perceived Loadout being different from the one actually used.
(Edit: made the paragraph three sentences from one.)