The only way to play the game legitimately is through a disc. Any other way to play it leads to a discussion about piracy/cracking, which is frowned upon or most likely banned from discussion here.
Does this crash the game in the stock 2K roster? I have a theory that maybe it could be the player slot issue as there wouldn't be any room for generated staff
I tried adding the CAP/CAT slots from 3506 to 3851 and added more slots to make room for the guys I replaced from 3506 to 3851. All it did was break those player names so there's a guy with ******* as a last name (no profanity just asterisks) and another guy further down with asterisks on every other letter of his last name. Basically the roster got very wonky for me. Send me a PM and I will try to hex-edit the overlay colors (every roster I am looking for to replace in game overlay colors has a uniquely different offset that I look for) and send that your way