The Hazardous Environment Combat Unit, abbreviated as HECU, is a United States Marine Corps Special Forces Unit that is featured prominently in Half-Life and its expansions. Specially trained, they deal with a variety of indoor combat situations, particularly involving dangerous environments and unconventional enemies.

这些在官方记录中被称作危险环境作战部队（Hazardous Environment Combat Unit，即HECU）的士兵是一群隶属于美国海军陆战队特种作战司令部的精锐作战力量，其成员在圣地亚哥军事基地受训，擅长执行各种室内、危险环境及非常规的作战任务。

Tower, a member of Shephard's squadron sent to Black Mesa. Carrying an MP5 and an ammo belt, Tower is introduced during the journey to Black Mesa in Goose 7. During his journey through Black Mesa, Adrian Shephard finds the members of team X-Ray Zulu, all KIA.

Tower . Private Tower is a member of Shephard's squad sent to Black Mesa in Goose 7. He is seen carrying a Submachine Gun and an ammo belt. When he questions the unexplained secrecy of their mission, Tower is berated by the commanding sergeant on board the Osprey. Shortly afterwards, their aircraft is attacked and crash lands.

The following is a list of HECU grunts quotes that are original to the Blue Shift expansion. The game also features the majority of quotes listed in the Half-Life section. Location: sound/hgrunt/ Narrative quotes:

Hazardous Environment Combat Unit，即危险环境战斗部队，《半条命1》、《半条命：蓝色沸点》中的主要敌人单位，也是《半条命：针锋相对》中的主要友军单位。 整个部队由USMC（美国海军陆战队）中的出色人才组成，执行在特别环境中的战斗任务，半条命1中黑山事件后他们被派往执行遏制任务（逮捕、灭口以保住机密，详情参照半条命剧情），开始时进攻很顺利，但后来由于Xen异型军队的大规模入侵而伤亡惨重，最终撤退。 《半条命：针锋相对》中玩家将扮 …

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The Hazardous Environment Combat Unit [6] (HECU), often referred to simply as the military, Marines, soldiers, or grunts, is a United States Marine Corps special forces unit featured prominently in Half-Life and its expansions.

半条命hecu原版中文语音和蓝色行动中的语音（包含上期遗留的两段）

2023年5月29日 · The Hazardous Environment Combat Unit, also known as the HECU, was a fictional secret special forces detachment within the United States military. Although comprised of soldiers from many different parts of the Army, the bulk of the HECU is made up of U.S. Marines.