steamednotfried, congratulations in presenting yourself as an utter retard.
Why do I feel justified in calling you mentally handicapped? Because your 'review' misses some very basic points.
Firstly, you make reference to the series AS A WHOLE, and much of it seems directed at he original, or MGS2.
Consider how old the series is. Metal Gear Solid was, upon released, a ground-breaking game. In terms of sound, graphics, gameplay and storyline, it was on the leading edge in all respects. Time has not been kind (a fact that MGS4 actually proves in a very amusing way), but you CANNOT hold a game that old up to today's standards and expect perfection. On occasion, a game CAN compete on its own merits, but MGS is not one of them; three sequels have shown that Stealth Games can be done far better.
Instead, then, we must say "I'm going to make allowances, rather than pretend this game was released a week ago". Once you do this, much of the flaws seem to fade.
In fact, many of the flaws can be dismissed by the words 'game mechanic'. Why does touching a Goomba with anything but your feet kill you in Mario games? It's a game mechanic. Why doesn't Mario drown? Game mechanic. Why doesn't Mario take damage from falling a great height? Game mechanic.
Why does Snake's radar become jammed when spotted? Game mechanic - it Jams to deny you this very useful tool, thus PUNISHING the player for being spotted.
Why can't Snake "slip" into vents and such? Partly game mechanic, partly LIMITATIONS of the game mechanic; no game allows you to move as freely and realistically as a Real World human. Many games involve performing movements that are not physically possible with the human frame. This is simply a part of the artistic medium of videogames, and thus not a particularly valid point of complaint.
Your next source of anger, the Camera, is also invalid. In the real world, the only way to see round a corner is to put my head around it, which if I were in Snake's position would get me spotted. Instead, Snake can somehow 'see' people by leaning near the edge of a wall, via this magical camera that gives you an impossible field of vision.
You complained about being ambushed by guards you can't see... that's all part of Stealth games! The idea is you have to be careful, methodically search out every angle, not just take a quick peek and rush in! For someone who bitches about lack of realism, it seems odd that you DEMAND access to an extremely un-realistic method of locating enemies.
Besides which, we have Radar. Radar is present throughout most of MGS1 and MGS2 (it was removed for 3 and 4, a fact I approve of). I evaded foes more by watching radar blips than using the screen itself, as the radar showed the enemy Field of Vision as well as position.
Overall, you strike me as someone who is just trying to make themselves sound clever and feel important. Sadly, you do this by taking on a very popular series, and bitching about THE strongest title in it (the original), and a very high quality sequel.
Oh, and for the record, I worked out that you had to use Grenades versus The Pain all on my own. Shotguns work too.