Yakuza
Yakuza is the Japanese mafia which has significant influence within the Japanese society. The Yakuza were first introduced in Comic Issue 13. More recently they are featured in the game Legend.
Comic Issue 13
Lara tries to retrieve a Jade Statue that was stolen by Chu, a Yakuza boss.
Tomb Raider Legend
Lara Croft crosses path with the Yakuza when she tries to acquire an Excalibur fragment that was stolen by Shogo Takamoto, a Yakuza Kamicho (boss), by force.
Within the game, Shogo Takamoto's security was composed of two types of Yakuza members: Yakuza Goons which are armed with an Assault Rifle, and Yakuza Black Suits which are armed with Shotgun and appear to have a higher rank than the Goons.
Yakuza Goons
Armed with Assault Rifle and Grenades, those goons appear to be at the bottom of the Yakuza.
Their action in terms of gameplay is similar to Medium Armored Mercenary, but with slightly less health.
Yakuza Black Suits
Armed with shotgun and grenades, those goons appear to be either high ranking members of the Yakuza or Takamoto's personal bodyguards.
Their action in terms of gameplay is similar to Shotgun Mercenary.