Please have a system that checks the account before it is transferred from system to system. It is impossible to hack on the ps4 but it can probably be done on ps3. That's what people are doing with call of duty ghosts, they hack on ps3 then transfer to ps4. It will look bad on you guys if the game is modded on release. Just have something to check for hacks. It kind of ruins it for everyone if someone is the max rank on the first day. This is just a friendly reminder about the possible hacks or mods.