PS4: 8 million

Xbox One: 6 million (best on Xbox One with quicker DLC and the platform built on)

Xbox 360: 3 million

PS3: 3 million

PC: 2.5 million

Wii U: 20 thousand (if it comes out)

What do you think?

PS4 and Xbone are too high since they haven't been out long, and CoD is a yearly franchise so sales will drop out fairly fast.

PS4- 5 mil

Xbone- 4 mil

Xbox 360- 6 mil

PS3- 5.5 mil

PC- 4.5 mil

(potential) Wii U- 200,000

PS4 - 7,000,000
Xbox One - 5,000,000
Xbox 360 - 5,000,000
PS3 - 4,000,000
PC - 2,000,000
Wii U - lol (180,000)

Total - 23,180,000

Your PS4 and XBO numbers are way too high.

My predictions:

PS4 - 4.5m

XBO - 3.5m

PS3 - 5m

360 - 7m

WiiU - 100k

Can't really comment on PC numbers since I have no idea what the others sold. 

By the time the next call of duty comes out (2015 call of duty) the combined total for xbox one and ps4 will be around 45 million.

Call of Duty drops out fast in terms of sales, unless this is on level of the original Modern Warfare, it'll go just like all the other Call of Dutys (does great in the first month or two, then drops fast)

naw they always sell a few million the following year. should have better legs because more people are still adapting

25 million across all platforms

Maybe it'll be different this generation, it really depends on how many people transition, and if it'll be any good.

-By November 2015-
360: 6,700,000
PS3: 5,200,000

PS4: 4,200,000
XBO: 3,300,000

PC: 600,000 (If these are physical it still seems like a lot to me? But I'm going by past VGC numbers)
WiiU: 200,000

The way I can see my prediction not being true is if a fair number of people who could buy on PS360 wait a month or two to pick it up when they buy a PS4/Xbone so they can have the next gen version. I don't know if anyone will think like that. Then CoD would have a slower launch, about the same total overall, but shifted more towards the new gen.