http://www.belloflostsouls.net/2016/06/ ... tails.html
Industry sources tell BoLS:
The Codex Layout and Rules:
This is a very different layout and organization than the traditional Codex: Space Marines.
The codex will contain a very small number of units and many characters.
Every Character from Deathwatch Overkill is included.
There will be a HQ choice.
There will be 1-2 Troops unit choices.
3-5 Formations.
Drop Pods are the only vehicles described in the codex.
The big theme of the codex is customization. While the number of units is very small, there are lavish and exhaustive upgrade options for each and every model in the army. Things such as wargear, weapons, and even originating chapters all can be picked and have in-game effects.
It is quite possible to sink giant amount of points into a very small amount of models if you wish.