Just had a VASSAL match using Rex & Whisper vs panic attack with a very good player at the helm. I got beat handily, but learned a few things. For example, I needed more time to get whisper in a good position, so I had to slow roll Rex even more. As it was I couldn't focus fire and get an early kill like I usually do (or try to). So looks like its B-wings 1 vs Defenders 0 (well for me anyway, since posting on this thread).
I watched a good part of that game. First time I've seen a Debris field Direct hit a Y off the board. Yeeeowch!