you cant
There is an option on the main screen to go into Forge World. There you can pick any map that you want to create a custom game in. You get a "budget" on items you can put in the map do to only a certain amount of storage on a map. When you are done you can set the game to a certain game mode that it needs to be played on for it to work. Now if your talking about creating a game mode like team swat, fire fight, etc. you cant only Bungie does that.
You can play a custom team on career mode in Rugby Challenge 2 by completing the game. This unlocks many hidden parts of the game which includes custom teams on career mode.
You set the settings to what you want, then you press the X button. It will say, "What would you like to save it as" Name it and then you can choose from the categories.
it has manager mode 8 v 8 custom tourneys and online mode Thanks, but what is 8 v 8 custom tourneys?
In Dynasty Warriors 4: Empires, you can create your own custom player by selecting "Create a Character" from the main menu. After customizing your character's appearance and abilities, you can then choose them to lead your forces in Empire Mode. Simply start a new game in Empire Mode, select your custom character as the ruler or officer, and then you can engage in battles and strategic decisions to expand your empire. Make sure to manage resources and relationships with other factions as you progress.
Search and destroy.
Ther is one mode called zombie mode.
Are you playing in the right game mode.
That game mode got taken out
No. Both story and hero modes are available from when you start the game, but in order to make a custom character you need to start hero mode and not story mode.
When you buy Revolution, the first black ops 2 map pack, it comes with a new game mode called turned, which is a gun game styled game where you play as the zombie.
Refering to halo 3 and halo reach their is a custom forge game mode, here you can build and shape your very own map creations for both custom and recreational use.