I found it really interesting that they have some of their playtesting team doing the video here. Definitely a new perspective.
via the Warhammer Community
https://www.warhammer-community.com/2018/04/18/idoneth-deepkin-tactical-tips-apr-18gw-homepage-post-1/
As a brand new army, the Idoneth Deepkin bring all sorts of unexpected tricks to the tabletop – and we want to give you the edge when it comes to playing with (or against!) them. We caught up with some of our expert playtesting team for their top tips on using the Idoneth Deepkin: