User blog comment:Master Sima Yi/Assassinews 12-05-'15 — Assassin's Creed: Syndicate has been revealed!/@comment-24760042-20150731213530/@comment-5174994-20150803002516

Those optional objectives don't look that big a deal. They seem to be listing activities that can be done, rather than adding restrictions. If all of them are like that then it's fine.