fell in love with CoD1, then CoD2 but anything after that is just lame to me personally.

I grew old with the whole CoD series, mainly because it's just run and gun but more like spray and pray to be honest no skill.
The levels involve an army the side of continents just running at you from all sides constantly.

This kind of spray and pray has brought me back to other FPS games like Half Life or SWAT games that require an actual assault plan etc etc.....