Alan Tudyk's character, Mickey, has piloting experience and is assigned to pilot a drop ship. In the Firefly (2002) series, Tudyk's character, Wash, is the pilot of the ship Serenity, and Nathan Fillion's character, Mal, is captain, giving him orders.
The game developers were adamant about having rain during the night time New Mombassa streets segments. However, the engineers could not implement rain into the engine. It was left up to the audio department to alter the game's sound effects to provide the "feel" that it had rained earlier while you're wandering around alone as the Rookie.
Halo 3: ODST was remastered for the Xbox One as DLC for the Master Chief Collection. This version displays in 1080p at 60 frames per second, and features altered/improved lighting and touched up textures. A light rain effect has also been added to the "Mombasa Streets" levels. Rain was originally intended to be in these levels for the Xbox 360 version, but was not possible at the time due to technical limitations.
The game was originally named ''Halo 3: Recon'', but on November 25, 2008, Bungie announced that they renamed the game to ''Halo 3: ODST'', because the players play as Orbital Drop Shock Troopers in the game.
Adam Baldwin's character while holding a rocket launcher can sometimes be heard yelling; "Here's Vera!". This is a reference to Joss Whedon's Firefly, as Baldwin's character also had a large gun named "Vera".