We are all familiar with the Lone Wolf -- a useless piece of skin when it comes to teamwork.

This hints of some basic modes of play within virtual environments: solo, parallel play, and high cohesion.

Parallel play is the dominant form of group or team play and is distinguished by a loose collection of individuals who, for the most part, are playing in the same general area. Parallel play stops short of being fully cohesive team play as individuals are usually operating without shared targets, lack awareness of where the other members of the team are, and/or are unable or unwilling to come to the aide of fellow squad mates.

Parallel play is distinguished by