Alright this is our my house rules.
1st: I except bribes.
2ed and most importantly: the corruption system like rouge trader and dark heresy before it i re-installed the corruption system. But instead of you dying cus thats no fun for anyone you follow your corruption path:
Tactical Marine- Chaos Space Marine/Khorne Berzerker/Thousand Son/Plague Marine/Noise MArine- Includes all ability of space marines only instead of death watch training you now have the ability Mark of Chaos- add 10 to BS and you may re-roll failed to hit rolls./Khorne- add 20 to WS and Strength -10 to Fellowship and add furious charge (adds 2 more attacks and you must engage at least 2 more enemies or take 5 points of dmg/Tzeench- you now have feel no pain and have inferno bolts (hellfire rounds with and AP of 7)/Nurgle- add 10 to toughness/Slaanesh- add 10 to speed
Assault Marine- Chaos Raptor- you now have furious charge and raptor's scream (a sound-wave that effects all [friend or foe alike!] each player effected roll 1d6 if any rolls lower then a 4 they then must make a saving roll if they roll less the 4 they automatically die.
Devastator Marine- Chaos Havoc- you gain Unrelenting Devastation (you gain 6 attacks but the dmg is halved)
Apothecary- Chaos Apothecary (Bile's Prodigy)- you gain experimentation ( each player that volunteer's roll a 1d6 if roll is a 1- you must roll another 1d6 if result is 1-3 you have died, 4-6 you have gained +10 S. If roll was 2-5- you have stabilized and gain +15 Strength and Toughness. If roll was a 6- you gain +25 Strength/Toughness/BS/WS and speed but you only have 3 turns to live unless the Chaos Apothecary applies the antidote.)
Librarian- Sorcerer- Use codex Chaos Space marine to see full range of spells
Tech-Marine- Iron Warrior's Siege Master- You may construct chaos tarantula turret only once per 3 rounds or once per 1/2 hour.
Chaos Wargear: Staff of Bedlam (Usable only by Librarian/Sorcerer)- Dmg 2d6+10
Chaos Mutation- Dmg 2d10+S bonus- Rending
Daemon Weapons- Dmg 3d10+15 (Khorne DW- Dmg- 4d10+15/ Tzeench DW- Dmg- 2d10+10 AP-6 opponent roll 1d6 if he rolls a 3 or under he has become a chaos spawn under your command (counts as a familiar) / Nurgle DW- Dmg 3d10+15 has a 50% chance of poisoning opponent/ Slaanesh DW- Dmg- 3d10+15 opponent rolls a 1d6 if rolls under a 3 he falls into a coma and dies.)
Take these rules and go forth and have fun XD
FOR CHAOS!!!!