Here is way of being a werepyre (Werewolf + Vampire). 
1. Be a Werewolf
2.open console and write "player.removespell f5ba0" this will delete disease resistant of werewolf
3.get infected by Sanguinare Vampiris disease
4. wait 72 hours - 3 days. you can press "t" or sleep or make fast travels to skip waiting.
5.Now you are a werewolf - vampire BUT!
6. If you use Beast Form of werewolf your vampire feeding option will close, so you always be an stage 4 vampire. here is fixing this,
7.open the console and write " player.setrace (your race - for example nord or highelf)racevampire"
an example : "player.setrace highelfracevampire" write this and press enter.this will give you feeding option.
Beast form always delete feeding option, so you must do this every time.
sorry, my english isn't perfect.