The manoeverability of tailless aircraft is a bit of a can of worms. Actually, they can easily become unstable if not designed and balanced right. But ... just for one example, the "Me 163 (...) was extremely manoeuvrable in gliding flight and thus was not a straightforward target to down." https://en.wikipedia.org/wiki/Messerschmitt_Me_163_Komet#Operational_historyI am wondering just how plausible this layout is and how maneuverable it could have been. My understanding is that the contgrol surfaces need to be further behind the CoM.