I think one big parameter that people are missing here and that really prevents true help defense to be put in place is how easy is in vanilla 2K to make outside shots. Help defense works in real life because you prevent the most dangerous shots - those at the basket - for shots that have a much smaller success to go in, hence you willingly accept the exchange of a sure basket for one with just a chance to go in.
However if the parameters are inverted and making jumpshots becomes easier than making layups then help defense doesn't make any sense anymore as giving away 2 points is a much better option than giving away 3 points. And this is the primary aspect of the issue (that is tied once again to Park gameplay): given how gameplay is structured to work for Park - and that's how users there want it to be - a open three in 2K (especially in 2K22) is a 100% make shot and people in Park willingly give open layups to prevent three pointers (the parameters are totally inverted from reality).
If this aspect is not addressed and separated for 5v5 gameplay then help defense simply makes absolutely no sense, as it is actually much more difficult to make a layup than to make an outside shot in vanilla 2K. The devs tried to mitigate the matter by increasing on ball defense and players recovery on open jumpers but in online gameplay it is easy to overcome such behavior or even use it to cheese the AI.
That's why 2K decided to remove the help defense, because just one simple pass away and it was a guaranteed 3 point lost and the other aspects that the devs introduced to try to prevent this from happening didn't really work online. We can obviously use sliders to make outside shots go in at a realistic percentage, and hence that's why for us help defense worked so beautifully in the beginning , but that's not what 2K has to work with for normal balance of gameplay for the majority of users.
And here's also why 2K is stuck until a separation of gameplay is introduced or at the very least dedicated options to turn ON or OFF certain aspects of AI behavior gets implemented, as Park players want to make every single shot if they are left open, no matter how difficult, but with such a context help defense makes absolutely no sense no matter how good they make it to be.
Unless the underlying contexts are separated accordingly (since not only they are different but they are in complete opposition one to the other) nothing that works in one context will work on the other and no behavior that makes sense in one will make sense in the other.
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