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It’s great to see the additional emphasis on UE4, C++ instruction.
I’d like to highlight 's mention of text-based (written) C++ tutorials. For C++, written tutorials may be more effective than video tutorials over time. Written tutorials are easier to reference (nonlinear, searchable, etc.) than video, and the C++ in written tutorials can be easily updated to reflect changes in engine/game versions. Sample games, accompanying the tutorials, could provide the “live" visual. Many of the C++ videos cause frustration when they simply do not work with updated versions of the engine.
“Instructional Design is the practice of creating instructional experiences which make the acquisition of knowledge and skill more efficient, effective, and appealing.”