Originally Posted by jpg30
so is it 100% now that you can get all these achievements on all DLC in private now as i still keep seeing posts from people still not able to unlock some of them?
Yes. All except for the "Golden Artifacts" achievement are obtainable in private matches.
143/143 games completed (including DLC)
Completion percentage: 100%
Latest retail completion: Red Faction: Guerilla
Latest arcade completion: Motocross Madness