Va Tech has a rather large corps of cadets. The quad in the middle of campus is called "The Drillfield". I think that's why they are using camo.
From Wikipedia: "Until 1932, every able-bodied male was required to participate for four years in the Virginia Tech Corps of Cadets. The requirement was changed to two years until 1964, when participation became voluntary. Virginia Tech remains one of three public universities in the country (Texas A&M and North Georgia College and State University are the others) with both an active corps of cadets and "civilian" lifestyle on its campus."