I would strongly recommend that you check the patch notes and weekly updates, you will find extremly important information there.
That being said vanguard marks no longer exist in-game neither do Crucible marks both of them became Legendary marks and there is a 200 caps BUT there is no longer a weekly cap meaning you can get 200 use them and get 200 more and so on.
PLEASE READ THE PATCH NOTES AND WEEKLY UPDATES, THANK YOU.
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Actually you still can gain vanguard marks until the taken king actually comes out but many of the mechanics to do so are broken at the moment. You cannot gain legendary marks till TTK releases either. In order to gain vanguard marks you need to complete public events, this seems to be the only way to gain marks right now that I have been able to verify