Ashley Nadesan, who repaced the injured Remi Oteh early on, opening the scoring before Jordan Tunnicliffe double the lead with a towering header.
Dom Bernard pulled one back late on for Forest Green but it was enough as the Reds claimed all three points.
Photographer Cory Pickford was there to catch the action, the celebrations and the crowd. See a selection of his pictures below.
You can see a full recap of the game here. And you can see John Yems’ reaction to the victory here. For the latest breaking news where you live in Sussex, follow us on Twitter Sussex_World">@Sussex_World and like us on Facebook @SussexWorldUK