5m is exactly what I thought the game was sitting on months ago if we included digital sales. With Halo 5 coming to PC (Rumours) and the amazing MP support that 343 keep delivering on. Halo 5 will no doubt hit 7m+ in its life time. Halo 6 is a long way off still so there really isn't a reason Halo 5 will stop selling anytime soon. PC + X1 versions could exceed up to 10m as a good possibility, I wouldn’t put that past a good Halo game.
Just wanted to add. People seem to be taking these type of things way to seriously. There’s a lot of down playing in these type of threads. Regardless if you want to justify sales to a T. 5m are great numbers for any game. I know there are many in here wanting Halo to be unsuccessfully, I’m sure they were wishing that back in 2000. Halo is a great franchise and 5m and possibly end with a good 7m on X1 alone is quite an achievement since many gamers are boycotting the X1, due to hate and unknown reasons. I will say "Well done Halo 5 for putting the haters to rest, Keep up the good work. 5m are great numbers and I’ll be looking forward to playing Halo 6 in 1 to 2 years’ time."
Halo doesnt seem like a dead franchise now, does it.