A previous dev has suggested that the GTA 6 map really should be more compact plus much more densely packed. However, as leaks have continued to trickle away from Rockstar, modders have recreated the GTA six map in GTA five's motor which presents a way of its huge scale. https://simonbbaay.ja-blog.com/35498760/considerations-to-know-about-grand-theft-auto-6-map