Sony’s shock announcement of Concord’s shutdown just two weeks after it went on sale has sent its remaining players into overdrive as they desperately try to secure its Platinum trophy before it’s too late.PlayStation Studios’ ill-fated first-person hero shooter, which suffered a drastically low player count upon launch, goes dark on September 6, with all players set to receive a refund. Ryan Ellis, director at Sony-owned developer Firewalk, said: "while many qualities of the experience resonated with players, we also recognize that other aspects of the game and our initial launch didn’t land the way we’d intended."…