In nosing around I was given the opportunity to derive from ALevelScriptActor from within Rocket’s Add Code to Project option. Once it generated itself the compiler complained.
4> g:\rocket\bettertech\intermediate\builddata\include\bettertech\../../../../Source/BetterTech/Classes/BetterTechLevelScriptActor.h(12): error C2504: 'ALevelScriptActor' : base class undefined
4> G:\Rocket\BetterTech\Source\BetterTech\Private\BetterTechLevelScriptActor.cpp(7): error C2437: 'Super' : already initialized