MapMixer is designed to give you more control over the way you launch and manage your game session in Unreal Tournament 3. It replaces the the game's Main Menu and let's you launch either a quick-offline match or a complete session where every map is specifically customised - or randomised. It's a whole new way to manage your UT3 experience.
Map Source Lists
If you don't want to create a Map List manually, you can have MapMixer automatically generate a Session Map List for you when you start your game. In order to do this, you need to first create a list of 'Map Sources' and then decide how you want them to be used when the Session Map List is constructed.
You can have as many sources in your list and each one is either an individual Gametype or Map List. A Gametype source uses all maps for that Gametype (with an optional Map Filter) and a Map List provides a specific set of maps, each with their own Gametype.
In the Setup Page you can select the 'Source Switch' method that controls how each source is to be selected, along with how many maps should be created in the Session Map List. One example is the 'Priority Distributed' method, in which you assign different Priorities to each source in your Map Source List and MapMixer selects a portion of the maps from each Source (depending on it's priority) and distributes them evenly throughout the Session Map List.