Frey said:
I too was unsure about using the term Legate in the opening crawl. It's an unfamiliar (but real) word to most viewers, maybe Ambassador might be a better choice?
"Ambassador" probably would be a better choice. It has a flow to it, if you catch my meaning, which makes it an easy word to read. "Legate", on the other hand, is a harder-sounding word; it takes more mental effort for the reader to process it.