I created a new how to install and configure ASA with Firepower FTD video HERE and shown below. The FTD image is the “unified image” meaning the software that combines the ASA and FirePOWER technology into one solution. So this all can be managed by one GUI. There are Pros and Cons to using the unified image verse separate image as explained HERE. You can also find other FirePOWER ASA installation videos HERE.
VN:F [1.9.22_1171]ASA FTD Unified Firepower Image Configuration Video 6.0.1,