Haha yeah that's fake. Btw, I wouldn't put too much stock into the set photos of Cap in his Avengers 1 costume.
We've all been assuming they time travelled back to the Battle of NY, and maybe they did, but those orange dots on their costumes is for motion capture to CGI the QR suits over them. That shot of them walking in line in the Superbowl spot had Cap in his Avengers 1 costume, but Trailer 2 showed that the QR suits were CGI-ed over them. Maybe the Russos purposely chose that costume to screw with us haha