assassin's creed assassination mission help

i cant find the assassination missions i try looking for them on view points but still no luck what do i do

You have to do a certain amount of missions to get an assassination mission. You do things such as interrogating, pickpocketing, and whatever its called when you jump off the buildings into hay stacks.

i cant even do those

Are you sure you are going to the view points in the right district? IE, the view points in the Middle, Rich or Poor District?

pretty sure