cs isnt that hard to play. many make it out to be cause of the ranking system in it.
Global is probably the equivalent of FACEIT rank 3/4 or ESEA C, so it's far from a high level in CS. Playing CS is one thing, playing at a high level is a different thing entirely - hence why tier 1 players earn 6 figure salaries (excluding prize money and sponsorships).
just like siege. its just same spots learn recoil patterns. rinse repeat.
I don't even know where to begin with this, just LOL.