Back in the summer, we released the 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.
And now thanks to one of our German operatives, Agent Dudenhausen, those documents have been translated into Deutsch. Additionally, Agent Dudenhausen has also translated a form-fillable character sheet for aspiring Agents of German heritage.