Check out this 10 mission campaign from Blakarion – Aftershock. Included in the 28 Mb 10 mission Campaign are new weapons, skins, combat sounds and cinematics in each mission. Aftershock also plays online in coop mode, and requires Desert Siege and Island Thunder. Download here, and also install this tiny patch. Forum discussion here.

Aftershock is the second in a trilogy of campaigns from Blakarion. The first was Operation: Snake Strike, and if you have not already played through it, you can get it here.