It's a few stages (when you enter a stage, the screen turns black and it displays it's name in English and Russian) past the ruined warehouse (where you first meet Sokalov, Ocelot, and Eva) and it's just past a stage that has a enemy stronghold and weapons storage house.
Immediately after the crevice is a cave. I hope it helps.
To get to Bolshaya Past Crevice in Metal Gear Solid 3: Snake Eater, head through Bolshaya Past South and Base to the north. Once you are at the Base, the exit is at the very top of the map. You can also destroy the parked helicopter, and it will be replaced by flying platforms when you get to Krasnogorje Mountainside later on.
Metal Gear Solid 3 is not on PC.
Metal Gear Solid, Metal Gear Solid 2: Sons of Liberty and Metal Gear Solid 3: Snake Eater
metal gear solid1, metal gear solid 2 sons of liberty, metal gear solid 3 snake eater, and metal gear solid 4 guns of the patriots.
If you mean story wise then I believe it goes: Metal Gear Solid 3: Snake Eater Metal Gear Metal Gear 2: Solid Snake Metal Gear Solid Metal Gear Solid 2 Metal Gear Solid 4 But I may be wrong, and that isn't counting either of the Portable Ops games.
Metal Gear Solid 3 is not on PC.
Metal Gear Solid 4: Guns of the Patriots has an online component called "Metal Gear Online". Metal Gear Solid 3 also had MGO with MGS3 Subsistence, but currently is not online.
No. The only Metal Gear Solid game available for the Xbox is Metal Gear Solid 2: Substance. However, Metal Gear Solid 3: Subsistence is available for the Xbox 360 as part of the Metal Gear Solid: HD Collection.
personally metal gear solid 3: snake eater because it has that sense of freedom
As of 2012, there exist three Metal Gear Solid games with the exception of Metal Gear Rising: Revengeance for the Microsoft Xbox 360. They are Metal Gear Solid 2: Sons of Liberty, Metal Gear Solid 3: Snake Eater, and Metal Gear Solid: Peace Walker. They are part of the Metal Gear Solid: HD Collection, and can also now be purchased separately.
No.
There has been no confirmation of a Metal Gear and Metal Gear 2 remake. They are playable on Metal Gear Solid HD Collection in the Metal Gear Solid 3 portion, but thats the only thing that would be considered a remake right now.