>>719787018
I'm saying MGS3 as a prequel is not pointless because you have to wait on a sequel for MGS3 to be connected to the anthology. Time gaps in either direction need a connecting work.
Another way to think about it, MGS3 is not an effective prequel to MGS1&2 as you've said because it doesn't really have anything to do with them, it's effectively a prequel to MGS4. MGS3 and MGS4 make more sense if you think about them as a two parter with a huge time gap inbetween. Weird structure sure, but I don't see anything bad about the structure. It's like starting your final act with a flashback except it's game length.
Oh? My real opinion? MGS2 has a shit story and the world building went to shit right there. The series anthology/saga is also terrible and MGS4 flopped at its chance to half way recover after MGS3 contributed little. But MGS1 and MGS3 have good contained stories, MGS1 having the best scenario writing hands down, operatic tones, and the best villains. MGS3 is popcorn entertainment with a likeable support cast and a strong ending.