From the announcement:
following the many requests received we have now made available separately the scenic bases that comes with the first 10 packs of 1-48COMBAT figures. Make sure your table looks as good as your figures for a truly enjoyable game! Great looking terrain creates the right atmosphere as well as providing extra cover to make your game even more interesting and objectives truly worth to fight for!
Cast in tough polyurethane in a single piece and ready to use, this fantastically detailed models are perfect for 28mm to 32mm figures!
As well as excellent tabletop terrain covers these can be used also as a mini diorama or a display base thanks to the 25mm round hole inside, and many are just perfect to be used as game objectives!