Ya lmao it sounds dumb and that's why I would like an expert for coding in here but anyway...
So you can't hotswap mw3 because of the RSA checks but are they for only booting the game/changing from single to multiplayer or are they a constant thing that doesn't stop? Why? Because what about hotswaping in-game? I tryed stoping my disc well I was in a headquarters game and stoped it for like exactly 2 seconds and it still worked/kept loading the game so what if you change the disc extremely fast right then and there? Say you had an iso with the only thing changed is xp so randomly when your ingame it will go from 100xp to max xp? or is it stored in the system memory well in a match? but if you super hotswap well its loading a map it's reading from the disk to the system memory and if you can stop the disk and then it still loads 2 seconds later than maybe you can hotswap when it's loading files onto temp memory?
IDK mad shit about system memory, RSA checks, or coding cfg or xex files or anything like that but i'm just sharing my thoughts and wondering

Please no trolls? Quality feedback instead of "nice dude" and stuff?