Harbinger in the Night - John Warner - Bog

In the near future a new space race is in full swing to be the first to colonize Mars. The United States and allied European governments working alongside private industry are competing against the RSAC, a new Russian-Chinese alliance, to build working spacecraft to make the long journey.
In preparations for the mission, an engineering team from an aerospace/tech conglomerate is building out the interplanetary communications network, when a mysterious object emerges from the depths of interstellar space. As the nations of Earth scramble to investigate this strange comet, they must overcome plots from within and the machinations of a malignant AI in order to be the first to meet the menace, or the promise, that the intruder foretells.
Major Koda Cheveyo, a special operations soldier is tasked to lead his team to face this possible threat while Michael Thompson, a quantum computer engineer, works with his homebrewed AI to counter the emerging peril from within. Together with the help of a billionaire tech tycoon and a government security agent, their mission could reshape the future of humanity.