I think Halo 5 will do pretty well, but Halo MCC collection i don't even think will compete with Titanfall.

Uhh...what?

Not even Mario tbh

It sells 7 million, minimum. It'll probably go much higher. You underestimate the Halo love in the west.

1.  Yeah it is very possible it wont sell 10+.  However Halo 4 was tracking above Halo Reach up until Xbox One released hurting its legs. It certainly did not have poor legs though.  Even then its very likely Halo 4 has outsold Reach if you include digital, and who knows how that compares with Halo 3 numbers if you count digital as well condsidering digital was much more popular once halo 4 was out compared to halo 3

2.  Weird you talk about Halo not being a 10m franchise but then go on to name Gran Turismo and Mario.  Have you looked at the recent installments? Gran Turismo 6 is at 2.41m,  New Super Mario Bros U is at 4.16m, and Super Mario 3D World is at 2.21m.  So using your logic, then these games arent 10m franchises either.  Though to be fair Mario will continue to sell as WiiU continues to sell.  Reaching 10m may or may not happen

3.  XBO is down in america and Europe, no doubt.  Then again Halo pushes consoles, thats a fact.  7m is very possible, but i want you to remember Halo 2 sold 7m on 25m consoles.  It really depends on how well XBO sales to whether it will be near Halo 4 or Halo 2 numbers

Only Halo 3 ever reached 10 million, so that prediction doesn't hold much water as far as being a bold prediction.

I would say once 2015 rolls around Halo 5 could easily do 4 million units. It would be smart if MS went back to a Sept 2015 release as opposed to November like we've seen recently.

Yet, the 3d mario on the 3ds has (all but) done 10million, and you're picking on the weakest kink in Mario's armor. There has been 13 mario games that broke 10 million (more than any other franchise) with a further 3 within spitting distance, 2 of which will break this milestone in the near future (6 months or so). So if you're going to argue that mario isn't a 10 mpg franchise you can say there aren't any at all, which would be silly.

1. Halo 4 was released as the xbox 360's last hurrah, to an installbase that's going to be the largest an install base is going to be for a halo game. It was massively frontloaded, and even then it was only barely outpacing Reach, untill its legs died halfway through 2013.

2. Both have more 10 million selling mainline games than not. GT6 was a cash grab to fund GT7 on the next gen and should have never been released. Of course the latest home marios aren't going to break 10 million when the install base isn't even at 10 million. Try looking at the 3ds that has MK7 and 3d land that are 6 months top from breaking 10 million....

3. Yet, the best Halo could do on an install base 3 and a half times larger is sell only 1.4 times as well, shows that the franchise hasn't really grown from 8 million of Halo 2. XBO sales are dreadful and only going to get (relatively) worse, which means that according to (almost) everybody on this site, not do that well really as people think this gen will shrink. 

According to the site we're on, halo has had 1 of 4 or 25% of its main entries reach 10m

gran turismo on the other hand has had 4 of its 6 main entries reach 10 million or 66%.  Also the second game in a gen has always declined in GT coupled with the ps3s lower lifetime numbers and the previous launch of the ps4 explains gt6s performance.  Thus I believe gt can far more easily be considered a 10m selling franchise.

1.  Again Halo 4 was out-tracking Reach up until XBO release.  It would not have been very doubtful for it to pass Reach.  You also realize that VGC does not track digital.  So how much has Halo sold ditially?  Or digital bundles that VGC use to not track as well, both in which could easily push halo to 10m, we dont know.

2.  ISnt it kind of contradicting to call Halo 4 360's last hurrah and then go on to make an ecuse for GT6 selling not just 500k short of GT5 but roughly 8m less than GT5.  IF you are saying Halo is declining when it sells 500k less than Reach regardless of the end of console cycle, then what does that mean for GT?  Oh right, there is an excuse for that.

We are talking about home consoles, not handhelds which generally has different trends.  Even then yes Mario is a big seller no doubt, just pointing out that it isnt eactly selling 10m at this moment either.  IN time, possible, but it doesnt seem like fans are rushing out to buy the wiiu over it.

3.  So youre saying XBO is going to do worst  from here on out even though it has no heavy hitters yet and only one holiday?