Could probably just take an existing map and change it up to make it more syndicate like. Add the syndicate logo to some different rooms and flooring. Instead of coding an entirely new map because that’s a huge workload. Could even add some unique syndicate stories to the newscaster or even unique objectives for NT spies and departmental goals but that’s also a bigger workload.
It would be odd to see the transfer shuttle dock at CC. Would either have to make a syndicate CC or just make the crew transfer shuttle appear at the syndicate base like it does during hijack rounds. But that’s a minor thing and the rounds already over at that point so it wouldn’t really matter that much.