The only way to create a squad is to give a group of NPCs the same squad name. In fact, that's really all the work you have to do! NPCs within the same squad will call out enemies, cover each other, inform squad mates of enemy locations, and call for help when they need it. So long as you have a decent array of navigation and hint nodes, simply assigning NPCs to a squad is all the work needed to increase their effectiveness in the battle.

Using some entities we've learned about already, we can script a flank on the citizens inside the house. Select six of the combine soldiers and assign them the names alpha_soldier01-alpha_soldier06. Put them in a squad called alpha. We will be using a math_counter...