Undertaker
Discover the Assassin's Tomb inside the catacombs under Santa Maria Novella.
12/9/2010
1:07:28 AM
Common 70.6%
Tip of the Iceberg
Use your Eagle Vision to scan a Glyph in the environment.
12/6/2010
4:36:19 AM
Common 67.8%
Just Browsing?
In single player Story mode, spend 30 minutes or more in the Intex Terminal menus.
11/3/2010
2:43:33 AM
Rare 32.4%
Elite Force
Without the player taking damage kill 50 aliens in single player.
10/28/2010
2:12:55 AM
Rare 43.5%
Tooling Up
Purchase an upgrade (or witness another player doing this).
10/26/2010
10:39:07 PM
Common 60.8%