Remember that great mission in the original Mass Effect that had Shepard clearing out sentient machines on a lunar military base? So does BioWare, according to the coverage of EA’s EU showcase. Overlord, the fourth pay DLC package, sets Shepard against AI-run-amok on “five levels set across one story on one planet.

Fans of Mass Effect’s free-roam tank exploration might find Overlord especially worthwhile, since it brings back the Hammerhead hovertank and sports a less linear design than previous DLC.

Executive producer Casey Hudson also confirms that Kasumi – the assassin introduced in Mass Effect 2’s most recent DLC – will be the game’s final squadmate. See you in Mass Effect 3, Liara!

There’s no price or release date info yet, so stay tuned for the official press release.