Crosshairs: Extra Player Expansion

These Extra Player Expansions for Crosshairs provide not only the biplanes and elevation rings for a third or fourth player, but also rules for team play, including balanced (2p v. 2p, Free-for-All, Circle of Death), and specifically imbalanced configurations (1p v. 2p; 1p v. 3p), as well as variants to allow for handicapping, turbulence, and concealed fire from clouds.