Welcome Back Zero

Leaving due to his mother's abuse, Izuku leaves to America and comes back after two years due to All-Might falling ill and Japan's crime rate going up. But as he steps through the common doors, the room that was once filled with hushed whispering and collective banter - now fell into an uncomfortable silence as heads turned and gapped at him. This wasn't the normal Izuku Midoriya knew anymore. Since when was he a member of the SWAT?!