Maybe. Unless it was only for one console and not the other. Was there anything in their patch notes that validate a 2.5gb download? It's all code.
						English
						- 
   
	New sounds for a lot of different guns. New menu sounds. New reward sounds. New graphical icons. New animated icons for reviving and patrols. That much audio accounts for a large portion of the file size. The rest I'd speculate is paving the way for the upcoming DLC.
 - 
   
	Also, the average song is around 3-5 megabytes. The small audio they added would be nowhere near that size.
 - 
   
	3-5mb song? Only if it's a crap short radio edit and in inferior mp3 format. For real sound quality you're looking at around 10mb per minute of material. Just sayin' lol
 - 
   
	Dunno for sure man, certain parts look different to me. /shrug