1 INTRODUCTION  
2 SURVEYS  
2.1 MegaMapper  
2.2 MSE  
2.3 MUST  
2.4 A WST-like NTL survey  
2.5 A General Survey  
3 METHODOLOGY  
3.1 Observed power spectrum  
3.2 Bias and luminosity function  
3.3 Fisher Matrix  
3.4 Cosmological Parameters  
3.5 High-Redshift Survey Modelling  
4 RESULTS  
4.1 BAO and RSD Constraints  
4.2 Non-Gaussianity and Neutrino Mass  
4.3 Optimised NG surveys  
4.4 Optimised NM surveys  
5 CONCLUSION