Alone and unseen in the haunted hallways of Black Mesa, the HECU Grunt checked his radio. "Radio, check, over." A HECU member provided a concise reply to the HECU Grunt, disclosing his intended destination. The HECU Grunt offered a response in return. "That is, uhh, affirmative." Subsequently, the HECU Grunt initiated his walk towards the desired destination of his remaining unit.