Rites of Battle
A character might have some free Skill ranks already provided by origin Chapter. Additional Skills can be gained by spending XP, so long as no Skill is raised above two ranks at character creation.
The cost to train a Skill to the next highest rank is 5 XP times the new rank. For example, raising a Skill from 0 to 1 costs 5 XP. Each rank must be purchased separately. Raising a Skill from 3 to 5 would cost 45 XP (20 for raising it from 3 to 4, then 25 more for raising it from 4 to 5).
Skills can be purchased with XP to ratings no higher than 5, except that you can increase your two Primary Skills (those designated by your team Role) to ratings of 6.
Astrogation, Athletics, Ballistics, Coercion, Coordination, Discipline, Gunnery, Leadership, Medicae, Melee, Piloting, Psyniscience, Resilience, Security, Stealth, Survival, Logic, Tactics, Tech-Use, Vigilance
Archaic, Adeptus Arbites, Adeptus Astartes, Adeptus Mechanicus, Administratum, Archeotech, Astromancy, Black Library, Beasts, Bureaucracy, Chymistry, Codex Astartes, Cryptology, Daemonology, Deathwatch, Ecclesiarchy, Heraldry, Heresy, Imperial Creed, Imperial Guard, Imperial Navy, Imperium, Inquisition, Judgment, Legend, Mutants, Numerology, Occult, Psykers, Philosophy, Tactica Imperialis, Tech, Traitor Legions, Warfare, Warp, Xenos