Recent pickup: Rules of Engagement 2 (Omnitrend, 1993, MS-DOS)
In the year 2323, human colonists in the Local Group lose contact with Earth. In the turmoil that follows, authority in the colonies splinters into two factions: The Federated Worlds, and the United Democratic Planets. Just as the two groups are starting to unite, contact with Earth is made, and a conspiracy on both sides is revealed, eventually leading to all-out war.
Storyline aside, the meat & potatoes of this game are in the campaign editor that allows you to build your own missions, complete with branching narratives (hence the "Builder Manual")
This also features the "Interlocking Game System" that allows you to connect to Omnitrend's other games Breach 2 or Breach 3 in order to conduct fully formed infiltration missions (think Laser Squad or X-Com), with your ROE2 commander gaining the experience.
Ze_ro