These builds are meant for rookies, or those who just want some simple guidance. Any of these builds can be built with different main or peripheral ideas, or you can just say "screw them" and go build something on your own.
As they are, all three builds use 120 skill points, the same amount you get for levelling from level 1 to level 100. I built all three of these after having already reached level 100, and as a result I did not have to use partial builds. They may not work well when trying to build up to them from lower levels. Use at your own risk.
While other guides may be very similar, I built all of these without help from other guides or people.

Veni is a stealth build, simple as that. It focuses on the things I found were more important in most stealth heists.

Vidi is a mixture of technician and enforcer, built to take and deal damage, as well as open every door in the game.
It builds for the Saw, Shaped Charges, Loud drill upgrades, and the Man of Iron armor.

Vici is a mixture of a dodge build and a mastermind build, focusing on taking very little damage and making other people do things for you, while being accurate and killing a good amount of enemies.

It builds for Inspire, the Cop Domination skills, and most of the Dodge-related skills.