Put this into perspective: A single Forerunner Warrior Servant comes equipped with: their basic rifle is the equivilent to a 50 caliber anti-tank sniper rifle, they also have anti-matter weaponry designed to vaporize targets, mind-link with a Promethean Commander who can perceive the battlefield in multiple higher dimensions and timelines and issue orders instantly, armor that gives the user immortality, telekinesis, the ability to fly or hover, super human strength and speed (estimated to be the strength of at least a hundred normal men based on the Didact's showings), as well as the ability to become impervious to attacks by adapting like the Borg from Star trek. They can control a million attack drones at a ratio of 1 Warrior to 1million drones, not to mention likely having hundreds to thousands of years of experience. When getting very serious, a Warrior will enter his War Sphinx, a combat Mecha designed to flatten entire cities and lay waste to continents; in these Mecha, they can pull chunks out of a planet's surface, and crash them back to the planet like meteors. Forerunner ground combat has a tendency to destroy the surface of the planet. In orbit, they're much more likely to just blow the crust off using ships that can destroy stars, causing supernova to wipe out whole solar systems in one attack. In a one on one fight, a mook Jedi versus a mook Forerunner Warrior, the Warrior would demolish the Jedi, unless you mean to tell you me you think every Jedi is on the level of Starkiller.