Reference

Crusader initially joins the Fifty State Initiative at Camp Hammond as a new recruit alongside other characters such as Ant-Man, Melee, and Geldoff. The Fifty State Initiative was a program established after the events of the Civil War and the tragedy in Stamford to ensure each state in the U.S. had its own super-powered team. The Initiative aimed to train young superheroes at Camp Hammond, located in Stamford, Connecticut.

Specifically for Crusader, his involvement in the Initiative was part of a more clandestine agenda during the Secret Invasion storyline. Crusader, who is a Skrull, joins under the undercover mission of placing a Skrull in each state's superhero team as part of the broader Skrull infiltration strategy.

For further details, you can refer to this Wikipedia page on Crusader and additional context from Marvel Database.

Here are some related images to enhance your understanding: