cod:bo3 play pc with ps4 players

You literally didn't even look past the first link in that search didn't you? :P
Welp, here's what I found:

Microsoft have denied the fact that games will be made cross platform. However, the head, Phil Spencer, is now open to the idea of cross platform party chat.

Source: http://gaming.stackexchange.com/questions/243781/can-you-play-black-ops-3-multiplayer-cross-platform-on-xbox-one-and-xbox-360

Call of Duty: Black Ops 3 Will Not Offer Any Cross-Platform Play
Video game developer Treyarch and publisher Activision are aiming to deliver a big list of changes for the coming Call of Duty: Black Ops 3, but it seems that they have no plans to take advantage of the new cross-platform play options between the various platforms on which the title will be offered.

Source: http://news.softpedia.com/news/call-of-duty-black-ops-3-will-not-offer-any-cross-platform-play-487290.shtml

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