With a month to go before the first pitch, Fort Bragg’s Major League ballpark is nearing completion. In the last few weeks, crews have nearly finished bleachers that will hold most of the 12,500 fans set to attend the July 3 game between the Atlanta Braves and Miami Marlins. The warning track is all but done, and fencing around the field and dugouts is being installed. On Thursday, crews had begun working on the broadcast booth, where ESPN will nationally televise the game as part of its “Sunday Night Baseball” broadcast. Next week, crews will install foul poles, backstop netting and begin work on the “tent city” that will form operational headquarters and clubhouses for the game.