Amazing reviews all around. IGN and Gamespot gave it 10/10, and nobody yet gave it below 9/10.
That is a non-issue for me. MGS1 had one small location, MGS2 two [one very small], MGS3 one, and MGS had 4 small ones. MSGV offers incredibly much more terrain and variations in gameplay [shitton of bases, facilities, undeground complexes, natural landmasses [forests, etc]].
Also, don't agree. MGSV has one of the best lightining systems I saw in a game so far, great animations, char detail, AI, and much more. Sure, landmass polygon count could be higher, but this is a crossgen game [one of the last ones] that still manages to look fucking amazing [while running at 60fps, which is a rarity for modern AAA games].