If you are on the fence of breaching in your pocket and buying this game, just can read FAQ and hopefully it shall answer some of your pre-purchase questions.
Question: Does this game have a campaign?
Answer: Technically, yes, but it is more of an elaborate tutorial.
Question: Is there a SINGLE PLAYER campaign?
Answer: None.
Question: Will there be single player campaign?
Answer: Nothing in the horizon. And it seems like there will never be a single player campaign with an actual plot or storyline.
Question: Can I play solo?
Answer: Yes, Situations will give you a solo session to learn the basics of the game. However the main meat of the game is the multiplayer aspect.
Question: How is the game running on consoles?
Answer: The game runs at 60 FPS in PVP sessions, and 30 in coop (Terrorist Hunt). For Xbox One, the resolution is 1440x900p while the PlayStation 4 version at 1920x1080p. PC performance can vary on your hardware, your Internet connection, and your graphics settings, or a combination of two, or everything.
Question: Is there Deathmatch? Or you know, the respawning Quake 3 Arena types of modes?
Answer: No.
Question: Are there dedicated servers?
Answer: Yes, for PVP matches. Coop is another thing.
Q: PC Minimum / Recommended requirements?
Minimum requirement:
Supported OS - Windows 7, Windows 8.1, Windows 10 (64bit versions required)
Processor - Intel Core i3 560 @ 3.3 GHz or AMD Phenom II X4 945 @ 3.0 GHz
RAM - 6GB
Video Card - NVIDIA GeForce GTX 460 or AMD Radeon HD 5870 (DirectX-11 compliant with 1GB of VRAM)
DVD ROM Drive - DVD-ROM Dual Layer
Sound - DirectX® 9.0c compatible sound card with latest drivers
Hard Drive - 30GB
Multiplayer - Broadband connection with 256kbps upstream or faster
Recommended spec:
Supported OS - Windows 7 SP1, Windows 8.1, Windows 10 (64bit versions required)
Processor - Intel Core i5-2500K @ 3.3 GHz or better or AMD FX-8120 @ 3.1 Ghz or better
RAM - 8GB
Video Card - NVIDIA GeForce GTX 670 (or GTX760 / GTX960) or AMD Radeon HD 7970 (or R9 280x [2GB VRAM] / R9 380 / Fury X)
DVD ROM Drive - DVD-ROM Dual Layer
Sound - DirectX® 9.0c compatible sound card 5.1 with latest drivers
Hard Drive - 47GB
Multiplayer - Broadband connection with 512kbps upstream or faster
Question: Is a headset or microphone needed in this game? I read a lot from the Internet that this is pretty much required.
Answer: You need a mic in order to communicate with your teammates. Yes, this is a requirement if you want to win lots of games.