The official “Fortnite” Twitter account is teasing a special “Avengers: Endgame” event for April 25, the day before the film debuts in theaters. The tweet depicted a “Fortnite” character holding Captain America’s iconic shield, though there weren’t additional details given about what the “FortniteXAvengers” mode or content may include. Previously, “Avengers: Infinity War” villain Thanos […]