In battle-
James protected
Lily, Harry, his friends, family..."Run Lily! Take Harry and run!..."
Sirius avenged
The deaths of James, Lily, Marlene (the love of his life)..."He's at Hogwarts..."
Remus regreted
Not telling Dumbledore their secret, being weak, putting Dora in danger..."I should never have married her..."
Peter escaped
The Dark lord, an early death, his friends, Crookshanks, Sirius..."Please Harry...You look just like your father..."
-the Marauders died.
A/N Don't ask. It just popped outta nowhere.