The remainder of 343i's "compensation package" has finally landed alongside the latest patch for the Master Chief Collection. You can find the patch notes here.
Halo 3: ODST, in case you either never played it or have forgotten about its existence, actually takes place towards the end of the Halo 2 story arc from the perspective of characters other than the "Master Chief". Instead the campaign focuses on a squad of ODST in their fight against the Covenant.
So how do I download ODST?
As you can see below users whom have played TMCC before the 19th of December 2014 will receive an Xbox message with a free download key. Alternatively you can also buy the expansion for $4.99/€4.99/£3.99 here.
Is there anything else that's new?
Well yes, in fact there is!
As well as ODST a new map for H2:A "Remnant", a remake of "Relic" from Halo 2, adds another BTB map to the H2:A sandbox. unlike ODST, this new map is free for everyone as part of the latest patch. a picture of it can be found below.
It's also worth noting that our very own Psychoduck will be giving his expert opinion and first impressions of this "new" map soon™.
In the mean time why not post your first impressions of all the content that has dropped today as well as the latest patch in this here thread.
Furthermore why not post a ODST co-op session over on the Customs portion of the site, trust me when I say that ODST has an excellent co-op campaign.
See you in New Mombasa, fellow Orbital Drop Shock Troopers!