Armor. How do you get it?

How do I get armor? The armor guys want you to show your worthy. What rank or what else do I need to achieve this?

Read what the guy is saying. You need to get the Slayer of Heroes title before he will let you craft it.

I read that part, but how about vangaurd armor. What do I require for that?

... He tells you what you require for it if you just talk to him.