Xbox is reportedly looking to do a Netflix and bolt on an ad-supported tier to pad it further. But that will just set a new floor, and leadership keeps telling us the priority now is revenue growth, which is subscriber-speak for ARPU.Xbox has already pulled Call of Duty from day-one Game Pass after day-one inclusion hammered its sales, with new CoD titles now arriving on the service around a year late. We know that some Microsoft executives believe the service devalues games outright, and rumours (which Microsoft has dismissed so far, to be fair) suggest that day-one releases could be taken off Game Pass.When a game this bloody awesome and well-reviewed does this softly on its home platform, the model – not the game – gets brought into question.Which leaves Xbox at a crossroads. Will it keep making Gears games when the financial returns are this thin and the margins this low? And if it does, does the next one arrive off Game Pass at day one – the way CoD now does, or on PlayStation?