If you have playstation plus then Modern Warfare remastered is free to download
for the month of March.
I dont usually like COD and stopped playing the series after Black Ops but this one is pretty good, if you like these types of games.
Its been a decade since i have played the original Modern Warfare so it was a little weird getting back into it but after a few hours it came back to me and they added enough new stuff to make it worth it, imo. The gameplay is alot like the original but more modern and unlike the last few COD games its not super twitchy, theres no jet packs or wall running. This game moves alot slower and takes strategy. Anyhow, its free on ps plus. I was very skeptical of this game at first but I regret not giving it a chance sooner, ymmv.
Fair warning, this is COD so its full of micro transactions. If that bothers you then I suggest passing on this one but if not I recommend it.