When Daredevil and Elektra are at the train yard, the Empire State Building is lit blue and orange. This is a sign that the NY Mets had recently won a series versus the Yankees.
"Semper Fidelis" a Latin phrase that means "always faithful" or "always loyal." In the United States it is best known as the motto of the United States Marine Corps. Elsewhere, it is a common motto for towns, families, schools, and military units.