A somewhat grumpy Vault Employee waits for you to emerge from the Vault, to teach you tricks before going into the wasteland like a blind man.

What is this? It's a mod that introduces an NPC where you can do 'training' to specialize in 9 types of player character, ranging from politician to assassin to melee or tank style.

Or in short: He gives you a bunch of perks and skills right after emerging from the Vault, but does it in an immersive way.