According to a report from ExpansiveDLC on Saturday, the Xbox 360 version of the "Citadel" DLC for "Mass Effect 3" will indeed be split into two separate downloads.
"For Xbox 360 users, the Citadel DLC pack will come as 2 downloads on Xbox Live. ME3 Citadel is larger than our previous DLC packs, so it had to be split into 2 downloads.
"The first pack is priced at $14.99 and the second pack is tagged as free. Players need to purchase and download pack 1, then download pack 2 at no additional cost.
"You can download pack 2 without purchasing pack one, but the DLC will not work. You will get an error message in game asking you to download pack 1.
"It will say 'This DLC will only work in conjunction with Part 1 of 'Mass Effect 3: Citadel,' which is split across 2 downloadable packages.'
"Please purchase Part 1 prior to downloading Part 2 at no additional cost. 'This will not hurt your saved game but you will not be able to launch 'Citadel' until you have both packs,'" read the description.