From ROI Wiki

Sevok is a high ranking admiral in the Gayik'Von fleet who is a renowned strategist, commander and solder with a reputation for taking some of the hardest missions and always succeeding at them. He commands two of the most elite, well trained, and advanced battle fleets in the entire republic, and is a close friend of Adjutant President V'sin. He was also instrumental in the defense of Earth and the defeat of Mobeic and the Varnok Black Fleet in The Battle of the Oort Perimeter, as well as the defeat of Black Claw and the Tragarians over the planet of Sebius, and played a key roll in The Battle of the Haven. He is a commander of the same caliber and level of Grand Admiral Mike Clayton, and the two men mutually respect each other because of this.