I hope Spartan Ops voices and the incoming DLC will be regionalized too, Halo Reach DLC specifically the Firefight maps (Unearthed and Installation04) contains Firefight english voices only and sounds very out of place in my spanish latin american disc(Capitain Holland and the Marine voice in the target designator are still in spanish in that maps). I tried to get and answer from 343i in a thread with no response. So please 343i, support multilingual voices for Spartan Ops and incoming DLCs.
I know your fell bro. Brazilian got the same issues, and probaly will happen again, 'cause they might have already a long time contract with the voice actors, but don’t with all the dub studios over the world.