The value of small elite units had been proven, and Havoc Squad was later chosen as the model for a full division of highly trained and agile infantry squads- the Republic Special Forces. It wasn’t until the Battle of Alderaan that the squad rose to galactic fame, leading a small group of wounded and recovering men to victory against a massive Imperial invasion force.
Before Special Forces existed as a separate division of its own, Havoc Squad was attached to a standard infantry division throughout the Great War. Despite the total secrecy of Havoc’s missions, the team has taken on an almost superhuman reputation on both sides of the war- unstoppable commandos who can strike anytime, anywhere, regardless of opposition. The founding unit of the Republic Special Forces division, infantry squad 326- code-named “Havoc Squad”- is renowned as the army’s most elite fighting team. Homebrew Reference Book: The Old Republic Sourcebook