Halo 5 didn't do as great sale-wise as most people did predict. If UC4 does better then what people do predict, it can end in a slight tie with one of them slightly ahead. PS4 is doing so well and the advertisement and the public excitment of UC4 seem to be Superior then previous UC titles, even compared to any other titles thar have been revealed.
PSN: Opticstrike90
Steam: opticstrike90