BF4 or COD for single player on PS4

[michael_JCWS]

Just about to complete kill zone and need something new to keep me going, both of the above seem to get good reviews, anyone with both got a view point?

[Devilstreak]

I think the general format is battlefield for multiplayer and cod for singleplayer.

[Jasandjules]

If that is the case I have a sealed copy of COD for the PS4 if you are interested.