The Horus Heresy 2.0 ruleset is built around several core mechanics:
Many official digital editions include internal links—clicking a rule name within a unit's profile will often take you directly to that rule's definition. 0 rules, or horus heresy 20 rules pdf better
: Specific Legion traits (like Salamanders flame boosts or Iron Hands vehicle toughness) are more baked into the core mechanics, rewarding "fluffy" or narrative-driven army building. Quick reference sheet for crusade and heresy - Facebook The Horus Heresy 2
But for the last two years, a quiet rebellion has been taking place on Discord servers, in bunkers, and on the shelves of local game stores. It isn’t a new FAQ from GW. It isn’t a balance dataslate. It is a community-built, 180+ page labor of love known simply as: It isn’t a new FAQ from GW
The core 2.0 engine including movement, combat, and reactions Warhammer Community .
If you're looking for a specific PDF with 20 rules, could you provide more context or information about where you found the reference to it?