Treyarch is set to release Patch 1.6 of Call of Duty: World at War this week for the PC version. The patch includes a number of fixes as well as four new maps.

The new maps are the same ones that the Xbox 360 and PS3 received in early August. Console gamers had to drop $10 on the pack, which include three maps for regular multiplayer and one for zombie co-op, but all PC owners are getting it for free. Here are the list of Patch 1.6's changes, straight from Treyarch:

• 3 new Multiplayer maps: Battery (mp_drum), Breach (mp_bgate), Revolution (mp_vodka)!
• New Nazi Zombie map: Der Riese (nazi_zombie_factory), an all-new Zombie map set in a secret Nazi research facility featuring the Pack A Punch Machine, Teleporters, and many more undead hordes!
• Exploits pertaining to Demo playback.
• Favorites list now ignores filter settings.
• Fixed S&D round counting error when roundlimit is reached.
• New feature: in-game Add to Favorites.
• Friends list: green online indicator.
• Starting the game in Safe Mode will no longer toggle the “Soften Smoke Edges” graphic option.
• Fixed various crashes.
• Mods: Client will no longer join a modded Co-op server via Game Invite unless they have that mod loaded.
• Mods: Client running a mod will be asked to unload the mod if they attempt to join an unmodded server.
• Mods: All singleplayer levels can now be run with a mod loaded.