Battlefleet Mars Tactical Rules

About BattleFleet Mars: Space Combat in the 21st Century, from BoardGameGeek:

Simulation of interplanetary conflict in the Solar system during the late 21st century. Earth is dependent on extra-terrestrial resources, the procurement of which is managed, executed, and controlled by privately-owned conglomerates. The game concerns an attempt by disenchanted employees of the corporation living in space and on Mars to seize the means of production to gain autonomy. Relative positions of planets are tracked from turn to turn, affecting the travel times between planets during play. A balance must be struck between combat and political considerations in order to be able continue the conflict and keep the citizens on side. Combat can be resolved using a simplified chart system or played out ship to ship in 3D space. 400 counters