Chemical warfare? Biological weapons? Liberal deployment of WMD's to halt the advance?
Vigil started looking around the bodies of dead ADU troops to try and find some gear, once he obtained a rifle and a radio, he said "Well you people can move on now, I m sure i can get back to the armory, and you have aliens to defeat, a planet to save, thus lets waste no more time." Vigilt hen started to head back to the armory