This article is about the camera view, the camera that displays the area the playable character is in.
This is the typical view that places the camera so that the player can see Snake and his immediate surroundings. The player can use the right analogue stick to move the camera around. Pressing R3 will lock the camera. This is useful when the player wants to view an enemy just off camera.
This view shows Snake's perspective. This allows the player to see in any direction, which allows them to see all threats. When crawling through airducts the camera automatically switches to this view.
While playing Metal Gear Solid 3: Snake Eater, players often found that they would get ambushed by guards a lot more often than in previous games, due to the open-area nature of the game. This meant that players would often have to use the first person view, but this would slow the player down. As a result, in Metal Gear Solid 3: Subsistence an interactive camera was introduced allowing players to move the camera to whatever position was most useful for the player.
Behind the scenes
Hideo Kojima viewed Metal Gear Solid, Metal Gear Solid 2: Sons of Liberty, and Metal Gear Solid 3 as a trilogy, and wished to keep the camera the same in the three installments to keep the feel of the three games the same. He did, however, acknowledge that the trend for video games (at the time) was to use the interactive camera, resulting in its implementation in Subsistence, and was featured in all succeeding 3D games in the series, up to Metal Gear Solid V: The Phantom Pain.