Halo 3: ODST: Prima Official Game Guide
From Halopedia, the Halo wiki
Halo 3: ODST: Prima Official Game Guide is the official Prima Strategy Guide to the Halo 3: ODST video game. It included information on campign, where to find the comm. data, overviews of the campaign maps, strategies for firefight mode on all the firefight maps, and a section dedicated to all