Raymond's face told quite the complete story. His furrowed brow and dark eye bags vouched for his sleepless, painful night, which had the red tattoo on his neck to blame.
Yet, Raymond's bloodshot brown eyes didn't trigger any painful reaction when they fell on Khan. He seemed to have adjusted to his new condition somehow, which was quite a feat in such a short time, but Khan didn't expect anything less from him.
Despite the irremediable differences, Raymond was one of a kind. He was one of humankind's true geniuses, possessing a character that matched his intellect, which would be praiseworthy if it weren't for his crazy sides.
If anything, the fact that Raymond had joined that meeting was more meaningful than his achievement since it revealed his decision. The scientist had chosen to work for Khan instead of running away, and the war could definitely benefit from his genius.