According to VGC, these seem to be the 6 biggest Xbox One launch weeks in the UK to date
Game | Sales |
Call of Duty: Advanced Warfare | 231,977 |
Fifa 15 | 217,381 |
Destiny | 159,262 |
Titanfall | 129,878 |
Fifa 14 | 117,925 |
Watch Dogs | 113,563 |
If the figures we got for Advanced Warfare's 1st week (760k combined) are accurate, that would put week 2 sales at 166k, which means Assassin's Creed Unity combined sales are 150k. This puts the PS4 Assassin's Creed Unity sales at 78k.
We know Halo MCC is greater than PS4 Assassin's Creed Unity, so if the figures we have are correct (which is by no means certain), that would put Halo MCC between 78k and 113k