When it became clear that the engineer was in fact a hostage, Opus released his grip, and flipped onto the ground, landing lightly. After the scare, he was very talkative, and they released him to get to the evac point. A little shaken, the mechanic walked past the agent, who put a heavy hand on his shoulder and spoke to him. "Now, I'm going to trust you didn't bullshit your way out of that. But if we have any trouble because of you, I'm not going to be too far away. Remember that." The man nodded, and Opus joined the others in climbing the elevator shaft. 

As they crept up in silence, Rareth notified the team of the slackers in the next room. While the plan was set up, Opus hung there, quietly thinking of how best to apply his skills in this attack as she spoke. "If you will allow, I would like to try my chances with the patrolling idiots. They look like the most fun." Opus calmly stated, analysing the readout of the room on his wrist PDA. "To help me out a little, anyone have any strong metal wire or rope?"