Networks are made up of characters fulfilling roles. The basic roles are mastermind, administrators, agents and cut outs. The mastermind is the brain of the octopus, conceiving the plot and initiating it. Without the mastermind the network will stagnate or unravel. He is the key to the whole network.
The administrators work beneath the mastermind and above the actual field operatives. They are the managers who implement the plot. They maintain a legal cover and rarely commit illegal actions. They are often unidentifiable by the agents and operatives they manage.
Agents or operatives are the dirty work specialist. They are the ones that get things done and perform the illegal actions. They are usually very committed and will aggressively defend their network.
Cut Outs are used to do "leg work" and know very little of the network. All they usually know is that someone told them to do something. They're used in a network to protect the mastermind, administrators, and the agents from detection because they're more expendable; hence the name "cut out."
Communications between the members of a network can be one way or two way. Two way communications mean that both parties can initiate and contact the other. One way communication means only one member can contact the other in the network. The method of communication can be direct, transmitted or by drop.
Below is a sample Network for the following adventure.