Betrayal Syndicate farming balance if it goes to base game.

After watching the ZiggyD video:
As I predicted, maps with syndicate encounters will be less common, but there are multiple encounters in a map. So, how common? Let's assume three encounters per map (the example ZiggyD gave) is as expected, and Syndicate maps have a 10% chance of occurring. That'll be 30% of the current spawn rate. (Possibly as low as 20%, if they use Sulphite spawning rules instead.)