In Dead Island, orange-rarity items spawn in loot drops (e.g., weapon chest) at a high, if not 100% chance (outside of vendors) after a certain amount of time. This information was largely propagated by DeathMule across fora. DeathMule claims that the interval between this guaranteed-orange-weapon-spawn-chance (owsc) is five hours. I feel that this claim draws an arbitrarily high time beyond and rather than the true value. Is it true that it takes exactly five hours or does it take a shorter length of time?