From their announcement:
Defiance Games has announced that their 28mm (1/56 scale) hard plastic SF US Marines for the Alien War range - are now available to order.
This is a 24 figure set (including 24 25mm round bases) that comes with a large number of weapon options, packs, heads, and extras.
The set retails for $29.95 - but there are also 2 launch special offers.
4-set deal (96 figures) for $99
8-set deal (192 figures) for $199
Shipping if free worldwide for the 2 deals and only $5.95 otherwise.