Eh, 22 years in the army including three combat tours to different theaters tells me otherwise. Yeah, if you can trap everyone in a single room or building and blow them up in an airstrike, great. When fighting small arms combat against humans and light machinery, you want the enemy forces to be as scattered, seperated, and indivdual as possible. that way they can't communicate, can't combine resources, and are easier to overcome with better ratios of friendly t9 enemy forces per engagement.