We have to update 'Lead Score'on basis of subscriber activities (Open/Click) for every email deployment. Emails will be deploying from 'Journey Builder'. Unfortunately we do not find option in 'Salesforce Marketing Cloud'. So let me know if there are any possibilities.
Example: if subscriber opened first email then Lead Score ="100" if subscriber clicked on particular link="100" if subscriber clicked on particular link twice or thrice ="200" or "300"