From the preview:
In Sentinel Games we have almost finished the first army for Total Extinction: the Glorlons.
Eons ago the Glorlons realized that his destiny was to colonize the universe. They created spacecrafts capable of traversing space and expanded beyond imagination. But in its expansion saw they were not alone, other species inhabiting the worlds intended for them. The only solution was to exterminate that species. All of them. So, one after another, the Glorlons beat all other races, annhilated every last one of its members. The Glorlons did not want that in the future nobody could dispute what they had earned.
Then they discovered to mankind. As they always did, they rushed to take their worlds, but unlike other races who had been defeated easily, humans face planted. The men were divided into deadly feuds nations but that division had made them strong in war and responded with the same ferocity that Glorlons reserved for his enemies. Now they also fight for their survival.
In the images (from left to right): Biotank, Bioartillery, Genocider, Soldier, Commanders (2) and Raider.