Ellen White scored a hat-trick as England routed Northern Ireland 6-0 in their friendly at St George's Park on Tuesday.
White scored England's first two goals before Lucy Bronze made it three before the half-hour mark.
Rachel Daly added a fifth on 67 minutes before an Ella Toone penalty completed the scoring with 15 minutes left to play.
Scott was given the captain's armband for the occasion and thanked usual skipper Steph Houghton for the honour.
"Massive thanks to Steph [Houghton] for letting me have the captain's armband today," Scott told BBC Sport after the match. "She's made so much effort to make sure it was a special day for me."
Before the game. Houghton had called said Scott, 34 is a "legend" of the game.
"She is a legend in my eyes," Houghton said. "I would have her in any team I play in.
"She has been one of the best midfielders in the world and has shown that consistent level of performance so I'm full of admiration for her."