Hello and welcome to an up-to-date/improved version of Jorndel's MW3 Hack/Trainer/Info Collection! Most of this is just a re-wording of what is already existing, but is up-to-date.
Note: Threads from Modern Warfare 3 Private Server Hacks are EXCLUDED. All of the information in this thread is meant to work with the Steam version of MW3. If needed, I will adjust to support/include non-steam versions.