Bungie's defended the choice of announcing Halo 3 Recon at TGS, saying it's a good show to get the game out in the open thanks to global media interest.
"TGS is a game show where the worldwide media does descend on it," said developer Luke Smith, talking to the Guardian.
"Regardless of the product's individual success here, the simple fact is that this is a place where the world's eyes are watching. And where we have that opportunity, that's a great place for Bungie to announce a game."
Bungie PR director Brian Jarrard added: "I would agree, and I think it happened to work out also nicely that the theme of TGS this year seems to be the globalisation of gaming.
"It's nice to be able to bring the western games over here, and I believe Xbox as a platform is doing very well over here recently as well."
There's a ten-minute video interview through the link.