The Half-Life Editing Resource Center has posted an overview of the Half-Life teamplay entities included in the 1.0.0.9 Half-Life executable included with the TeamFortress Classic LAN release as well as the Worldcraft game data files with the entities from the new release. This is a whole new set of teamplay entities separate from the TeamFortress Classic stuff. They are of a much simpler nature than TFC entities, and are less powerful as a result, but they do allow mappers to add enhanced teamplay aspects to deathmatch maps. Of course, some of the information is subject to change for the final release of TeamFortress Classic (currently planned for April 2).