Data Hive

Data Hive is a Halo 3: ODST level. The characters, objectives and enemies are currently unknown, the only known thing is the Data Hive achievement, which is unlocked after you complete the level, and therefore unlocks the Chasm Ten in Firefight mode. There is also an achievement called I Like Fire, which requires you to score 10 kills with the Flamethrower on this level, in order to be unlocked.