Team Fortress 2 is a multiplayer first-person shooter in which players choose one of nine classes (soldier, sniper, spy, etc.) and fight in teams, red against blue. It's a game I keep coming back to for a variety of reasons. One of TF2's main attractions for me is the human interaction it showcases. Some players will go to any lengths to win, using the best weapons possible and never stopping the attack. It's a fair way to play, well within the game's rules.
Some players, however, have what could be called 'TF2 honor,' a sense that within the range of what is allowed, some things are improper. It's bad form to use certain powerful weapons, especially when you're on the winning team. It's good form to apologize when a critical hit unfairly wins a fight for you. When a medic is healing you, you should thank (shortcut z2) and protect them. One could say that all this is just good teamwork, but it ends up making the game more interesting and fun for everyone involved. 'Honorable' TF2 players make for good teammates and better enemies.