Lost character (Fallout 4)

When I was going through the mission, I met one dude in decorated power armor (painted as if it was on fire), then I didn't wear my armor and he refused to speak, only gave me an interesting idea to attach a jetpack to the power armor and regretted that it was not possible). Then he invited me to go to the cat (I don't remember where, in my opinion he said so). Who is this and where can I find it? What was he talking about? help me please