König suffered from severe social anxiety throughout his life, often being bullied during his childhood. At the age of 17, he volunteered for the German Armed Forces and was selected for the Kommando Spezialkräfte.
While he hoped to join the 5th Platoon as a recon sniper, his physical size and his inability to stay still made him an unsuitable candidate. He was later assigned to the 1st Platoon as an insertion specialist to serve as a battering ram charging through doors in contested environments.
During a mission, König took down an Al-Qatala cell in Berlin which was involved in human-trafficking. He breached the townhouse and eliminated all twelve AQ fighters inside. However, his sniper hood terrified the Urzik hostages who had to be convinced by the rest of his team to follow König to safety.
By 2022, König became a contractor for the KorTac private military company.