Sungrazer

In a new Cold War between Earth and the colonies on Mars, when devastating weapons go missing, there's only one team you can call - the Outriders. A crack force of highly specialized super-soldiers, their clone bodies are near-immortal. When a fully-autonomous vessel with orbital strike capabilities goes missing, it's up to the Outriders to track the un-trackable. But when the trail leads them to the influential Martian People's Collective Republic, the operation gets a lot more complicated.