>>2075218
>For example I wanna play XCOM 2, but I also feel like I have to play XCOM EU/EW first. It's autism.
Try the actual first games like UFO Defense.
After that, you can play XCOM EU/EW and be ready for the "Long War" mod.
Then XCOM 2, but I'd say I didnt played it too much. Spend more time on Xenonauts, havent done the 2nd game yet.