Gamepad is a flexible peripheral that allows us to enjoy almost all types of games.
That is the reason why console manufacturers continue to perfect their controller design because this device is the main way consumers interact with content as well as part of a brand identity:
Sony has DualShock, Microsoft is proud of its Xbox controller, and Joy-Con is a mainstay of Nintendo.
But revolutionary the design of the controller, keyboard, and mouse is still considered the best input system to enjoy some games that require high accuracy and speed, such as shooters and strategy.
This condition seems to encourage the Infinity Ward team to not be half-hearted in providing full support of those two typical PC control peripherals in the console version of the Call of Duty: Modern Warfare remake.

Through the PlayStation blog, Infinity Ward conveys how the brand-new shooter game can be played using the keyboard and mouse both the PlayStation 4 edition and the Xbox One.
This step is a form of developer commitment to support cross-platform play features.
The presence of cross-play allows gamers on the console to enjoy Call of Duty: Modern Warfare with their colleagues on PC.

Some console manufacturers had hesitated to embrace the cross-platform play feature and Sony was the slowest brand to adopt it (compared to Microsoft and Nintendo).
Viewed from the perspective of consumers, cross-play does make multiplayer sessions more difficult to predict and there are several adjustments that developers must apply in the game to keep the match balanced.

In Call of Duty: Modern Warfare, the matchmaking procedure is intentionally adjusted to your input peripherals.
So if you connect the keyboard and mouse on PlayStation 4, then you will only play or compete with gamers who use a similar control scheme.
That means those of you who only have DualShock 4 or Xbox controllers don’t have to worry about meeting your “armed” keyboard-mouse opponent.

In addition to the input and cross-platform play system, there is much other interesting information related to the Modern Warfare remake that Activision / Infinity Ward revealed.
For example, the developer promises to get rid of Season Pass and present all kinds of post-release content for free.
Then the operator character you choose is only cosmetic and does not affect gameplay. And then, progress in all modes (single-player, co-op and competitive multiplayer) is combined.
So you can unlock weapons and items in single-player, then use it in multiplayer.