My review:
Managed to get 3 friends together to play the update. We haven't played since december.
3 hours of getting fucked by underground digger ants and other things that approach underground. Most un-fun enemies they've ever made.
Also the dragon is terrible. New enemies are annoying, not fun to fight. At least the new drill truck is cool.
My most normie friend bought the ODST pack and was initially super hyped. Turns out the guns were literal downgrades to his existing ones, and can't be leveled. Everyone could hear the change in his voice as his excitement faded little by little, every time he tested a new Halo gun in a mission and realized how meh it was.
We all quit the game sad. But he was sadder than everyone. Overall it was a miserable experience. 2/10, teleporter pack is nice.