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Face-Off: Battlefield 4 | Eurogamer.net
BATTLEFIELD 4：PS3からPS4へアップグレードできるプログラムの詳細を公開、期限は3/28 | EAA!! FPSjp.net（イーエーエー）
Sony Upgrade Plans From PS3 To PS4 Versions Of Battlefield 4, Assassin's Creed 4, & Watch Dogs –
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