currently stuck on zapping the panels, found 3 of them, not sure what to do next
Edit: Just beat it, But apparently the journey has just begun that 4th green panal was so hard to find tho! Loved the map, loved the easter egg aspect!
"Does not reqire T4M"
Try turning off spec maps or lowering your texture resolution before launching the map, or just playing around with your graphical settings until it works. It works fine my end.