Campbell was called up for the 2011 CONCACAF Gold Cup in the United States. In their group opener on 5 June at Cowboys Stadium, he replaced Marco Ureña in the 56th minute and a quarter of an hour later volleyed a goal to conclude a 5–0 win over Cuba. In the quarter-finals at the MetLife Stadium, he again came on for Ureña in the second half of extra time; the game went to a penalty shootout in which Campbell netted his attempt but Honduras advanced 4–2.