It's not just the same coin. In the mil the coins have a ranking and the highest ranking coin beats the others. Example: If someone has coin for a ship, given by the commander and another has a coin from the Group (Admiral) then the Group would win. Same in SF…someone with a unit coin doesn't beat out a SOCCOM or SOCEUR coin. This is why some would carry more than 1 coin but always ensure they have their highest ranking coin…otherwise they buy the drinks