_special2 = Activate Ring of Shadows (RoS). This ability makes you invisible
to SGs and MGs for a period of time - but not Players!

radar = activate radar, which points out location of nearby players, SGs,
dispensers, detpacks, and multiguns.
See "ntf_help_vars" for Radar player VARS.

buildspecial = Build a Teleporter Disk.
buildspecial, tele or warpjump = Use your Disk.
(You may not build or use the Disk while carrying flags or keys.)

marker, mortar, and detmarker = Mortar Marker commands. See "ntf_help_mortar"

Touch an inert multigun to upgrade it to a Displacer.