"with all due respect commander" 
A deep, gunky and dry voice hissed from behind the group in an almost snake like coyness, a mix of passive-aggression and legit concern for his fellow trooper in this vexing and tedious task stayed in his voice all the while. His face rippled with each word and the crunching noise of dry and charred skin rubbing and flaking emitted as the ghoul spoke. His furious eyes dully staring to the man then to the troops around him, with a strange combination of curiosity and disgust.
"For these...'smooth skins' to enter the world of ghouls with me would be an unneeded risk. With the way they look and how they're dressed and how they look, picking them out of a crowd down there will be very easy" 
He croaked yet again, moving slightly closer to the rest of the group, scanning each of them over and giving a toothy smile that did not show off the best wishes if looked at for too long. He continued again, his accent powerful but his words much clearer thanks to the thick gunky tone of his voice. 
"I suggest this be a special job for a small insergant, myself being the only ghoul and former spy, I see it wise to elect myself for such a procedure" He spoke, pausing again to let in a desperate gasp for air, readjusting his bandaging and blinking to get what little moisture he could to his harsh eyes. The Chinese man bowed slightly before finishing his plan.
"If they can get me into 'underworld' as you call it as planned, I will fulfill the job as the rest are able to reach the next position and dispatch of the radio, it's simple, effective, and will make it less likely for their troops to concentrate on us his we are found out. If I am to fail, then this group may take my place in my own mission" He responded, hunched slightly as he looked to the others. Seeing a super mutant was a surprise to him, especially as it was not currently bashing the closest head to itself. The humans where as normal as they got, despite the one wearing a gas mask, who he though his clothing was strange, but disregarded his suspicions of anything else. Gau now awaited a response.