Tom Clancy's Rainbow Six Rogue Spear: Black Thorn

Rogue Spear: Black Thorn was developed by Red Storm Entertainment, published by Ubisoft, and released as a stand-alone Add-On on September 15, 2001. Black Thorn featured 9 new single-player maps, 6 new multiplayer maps, 10 new weapons, and a new multiplayer variation on the "Lone Wolf" game type in which one player takes on everyone else; the winner of the round then becomes the new "Lone Wolf".

The new weapons include:
 * SIG-Sauer P228
 * Steyr SPP
 * Beretta M12
 * FN P90 (including a suppressed version)
 * Steyr TMP
 * FAMAS G2
 * FN FAL
 * FN FNC
 * SIG SSG3000
 * M60E4
 * IMI Galil ARM (Terrorist weapon — only available in multiplayer mode)
 * Valmet M88 (Terrorist weapon — only available in multiplayer mode)