A:AnswerThis is a regular Xbox One Head set. It has the 3.5 mm headphone jack. It feels funny at first but you get used to it quick and then it feels fine. I am not sure what the call of duty thing is about.
A:AnswerYes, this can connect to a 3.5mm headset jack. If your computer is equipped with separate jacks for Audio and Microphone purposes, you would be in need of an additional cable known as a PC Splitter Cable.
A:AnswerThat is correct. The Recon Chat is a Chat Communicator headset, meaning that it will only provide you with Chat Audio. Game Audio will continue to be played from your TV's speakers.