OSINT-6 CHANGELOG 251119

E6 gave us three durable ideas: six levels can sustain a full campaign, capable characters can remain mortal, and planning can matter more than continued numerical escalation. It didn't provide a ready-made advancement chapter for OSINT-6.

The original E6 framework belongs to an earlier d20 fantasy environment and was published with the Open Game License. Its post-cap procedure awards another feat for each 5,000 Experience Points, then uses additional assumptions for feats, challenge ratings, spells, and high-level threats. Those details weren't part of the SRD 5.2.1 Creative Commons workflow used by this project.

We therefore treated E6 as independent design inspiration. OSINT-6 doesn't copy its prose, feat text, XP award, challenge calculations, spell assumptions, or broader 3.5-era economy. The OSINT-6 Core Rulebook states its own six-level classes and its own advancement procedure.

Agents advance together through team milestones earned for completed operations, objectives, and substantial campaign developments. The game has no Experience Points. After level 6, every 3 additional team milestones grant each agent one qualifying General, Combat, Technical, or Social feat. The agent remains level 6 and gains no class level, Hit Points, proficiency bonus, or class talent.

That procedure preserves some mechanical growth without reopening the vertical progression the cap was meant to close. Later campaign awards can also expand options through qualifications, contacts, sponsor resources, safe locations, cover assets, or source relationships. These benefits improve preparation and access while leaving the agent's basic numerical scale intact.

This is where incorporation differs from imitation. E6 identified a useful campaign shape. OSINT-6 rebuilt that shape for a different rules edition, license, genre, and reward structure. The result acknowledges the influence while allowing the final procedure to answer the needs of modern espionage.