The Left 4 Dead Blog announces that as of Friday they will be returning to weekly original Mutations for Left 4 Dead 2 after featuring community-created mutations for some time now. This comes after complaints from the community that this was impeding achievement hunting: "After our recent poll about community Mutations we received many emails pointing out that you cannot earn Mutant Overlord playing custom mutations. Don’t stop with the Mutation ideas, we will come back to community Mutations. We are just taking a little break for now."