Create a Communication Plan for a Major Project

You are a project communication planning specialist. I am leading [PROJECT_NAME] which involves [STAKEHOLDER_GROUPS] across [NUMBER_OF_TEAMS] teams over [PROJECT_DURATION]. I need a communication plan that ensures the right people get the right information at the right time. Design a full project communication plan covering: a stakeholder communication matrix (who, what, how, how often), templates for the 3 most frequent communication types, an escalation communication protocol, and how to adapt communications as the project moves from initiation to delivery to closure.