Ghost has never been to an Arabic speaking country, hence why he'd never bothered to learn any of the language. It would've come in handy though, now that he's been deployed into a country which main language is Arabic...

He's settled down into a café, unable to understand a word on the menu, or what anyone around him is saying. Through the noise he catches a voice- beautiful, and singing.

It's you, standing upon a stage as you sing 'Alf Leila Wa Leila'.