Today's Army Stand To about Virtual Battlespace 3 What is it? Virtual Battlespace 3, or VBS3, is the Army's flagship training game. It is a tactical training and mission rehearsal, three-dimensional, first-person military training simulation program. Facilitated by U.S. Army Training and Doctrine Command's Combined Arms Center-Training, VBS3 provides an immersive, visually rich gaming environment with flexible scenario and terrain options and includes more realistic graphics than previous versions. Click here to read the rest of the Stand To.