Bungie opdaterer Halo 3 senere i denne måned, og det bliver bl.a. med endnu bedre filtre mod fusk, en finslibning af visse detaljer og ikke mindst en frisk pakke achievements. Listen nedenfor er ikke komplet, men her er noget af det du kan glæde dig til.

Vidmaster Challenge: Lightswitch (0 points)
Get to the rank of Lieutenant in any playlist in the new EXP progression system.

Vidmaster Challenge: 7 on 7 (0 points)
Enter into any ranked or social playlist with 7 EXP on the 7th of the month.

Vidmaster Challenge: Annual (0 points)
After 9/25/08, complete Halo on 4-player Legendary LIVE co-op, with Iron, and everyone in Ghosts.

Double Double (25 points)
On a Legendary map, get two Double Kills during any ranked or social match.

Poor Yorick (25 points)
On a Legendary map, get 3 Oddball melee kills during any ranked or social match.

Came...From...Behind (50 points)
On a Legendary map, get 3 assassinations during any ranked or social match.

Defend This (50 points)
On a Legendary map, get a flag melee kill during any ranked or social match.

Flag Dropped (25 points)
On a Legendary map, get 2 flag carrier kills during any ranked or social match.

Road Rage (25 points)
On a Legendary map, get 5 Warthog chaingun kills during any ranked or social match.

Look Both Ways (50 points)
On a Legendary map, get a Splatter Spree during any ranked or social match.