New files have been posted at RPGNow.com: Delta Green Briefing Documents.
This five-page reference document summarizes the core rules of Delta Green: The Role-Playing Game. They cover creating Agents, using skills, conducting combat, and falling apart as sanity dwindles. Find an expanded quickstart guide in Delta Green: Need to Know, and the complete rules in Delta Green: Agent’s Handbook.
The documents are “Pay What You Want” so head over to make playing and running Delta Green even easier.