The online version of Metal Gear Solid 4 is *awesome*. While we were done with the basic game after a few passes through it, the online version keeps us up all night long.

Basics
Character Creation
Skills

Weapons
Firearms
CQC
Grenades
Traps
Other Weapons

Items
Cardboard Box / Drum Can
Enhanced Night Vision Goggles (ENVG)
Garbage Bin
Man-Cannon

Game Types and Options
Preparation / Drebin Points
Deathmatch / Team Deathmatch
Capture Mission
Rescue Mission
Base Mission
Sneaking Mission

Teamwork, Coordination, and Tactics
Sons of the Patriots / SOP
Cooperative Actions
Tactics

Metal Gear Solid 4 Walkthrough