If you check the Use Single Player Levels checkbox, you’ll also be able to play cooperatively on the maps from the single-player scenario.

Game Type
Allows you to choose what kind of multiplayer game you’ll play. A complete description of all multiplayer games can be found in the Types of Network Games section.

Difficulty Level
This menu lets you set the difficulty of the game. This only affects games played on the single player (or cooperative) levels.

Host is Observer
Enabling this check box will allow the host to watch the entire battle without controlling any troops and without affecting his rank.

Player Limit
Allows you to set the maximum number of players in your game. The most players you can have is 16.

Time limit
Allows you to set the length of the game. Multiplayer games can be a maximum of 90 minutes.

Planning Time
If this box is checked, players will have an additional amount of time to scope out the map and plan their strategy. You can increase or decrease the length of the planning time using the arrows to the right of this option. The maximum planning time is ten minutes.

Allow Unit Trading During Planning Time
If this box is checked, players will be allowed to exchange the units they start with for more desirable units. See the Unit Trading section for more info.

Allow Veteran Units From Last Game
If this box is checked, surviving units from your most recent multiplayer game will join your force in the next multiplayer game. This can be a real boon if the units have built up a great deal of experience. Veteran units will only be allowed if the map and players stay the same as the previous game.

Allow Alliances
Checking this box gives you the ability to ally with other players during the course of the game.