Not true Minecraft was earlier by a few years and blew up a few years before the arma mod. But reading more of the lore it does seem like Brendan greene was involved in battle realistic style royals since very early days and was heavily involved I’m all the major genre hits. But that still doesnt make fortnite a copy.

Reading through the lore player Brendan Greene worked on h1z1 but ultimately the company that decided to make pubg say that they saw how popular h1z1 was and decided to reach out to Brendan Greene to work on the game that became pubg.