From their website:
We’ve added a video feature to the Games tab! Our first video is a quick preview of the MERCS book. If you’ve never seen the interior pages, we flip through the whole book (be it very quickly so that you can get a peak at what’s inside.
We’ll be adding a couple more short videos covering some of the very basics to playing the game over the next weeks or so. In addition, we have a few other videos being planned, including a couple of painting tutorials and a sculpting video from Tom.