I went for the Footsteps pack - since it's designed for use with Weaponiser, the installer is one of those annoying ones that doesn't let you choose where to install it/where it installed, but (on Windows) it's C:/ProgramData/Krotos/ and all the WAV files are there.
The Dogs pack is a third party pack (it says "provided by Coll Anderson" instead of "provided by Krotos") so it's not part of the offer.