Core Points - The event marks a historic breakthrough in the collection of fire sources for large-scale comprehensive sports events, utilizing deep-sea remote-controlled vehicles to ignite combustible ice [3][4] Group 1 - The "Haim" deep-sea remote-controlled vehicle successfully descended to a depth of 1522 meters to collect combustible ice and associated gas [4] - The process involved the remote-controlled operation of a mechanical arm to collect gas leaking from the seabed, which was then ignited to produce methane gas as the fire source [4] - The event was recorded using ultra-high-definition equipment, showcasing the innovative technology used in the collection process [3]