Infection is a game type. In custom games, simply change the game type to infection.
Also, the "living dead" playlist on Xbox Live matchmaking only plays infection, so you can play there, too.
no, Masterchief is not in Halo: Reach. Halo: Reach is set before the discovery of Halo, if you have or Know about the Halo book: The Fall of Reach, it is a closer view of the plant reach. but there are some other Spartans in it!
BEFORE
halo combat evoveld was set in 2552 after halo reach because when u meet keyes cortanna said that reach was a first step
Halo 3 Forge is a feature that allows you to build maps. You can't make the map designs from scratch, but you can place objects to make the map's psychology. Although here are a few glitches to make it more unique! By setting an object u can set to not set on start and then by starting a new round you have a few minutes to seconds to place an object inside it to make it custom. Also Vehicles do not set correctly when doing this.
There are matchmaking modes for multiplayer as well as firefight in Halo Reach. These would set you up to play with random players.
A Map Pack is a set of new maps that you purchase to enhance the experience for the game that you already own. If you already own Halo Reach, you can purchase extra Map Packs and extend the experience of exploring and discovering new locations.
You don't. Money in Halo 3 Forge is set to the map limit.
you don't.
Halo 3 has been out for ages now. the newest is halo ODST and halo reach is set to be out next year 2010
yes simply go to multiplayer and it is the same set up as halo reach
It launches on the same day as Halo: Reach launches (September 14th, 2010) Source: (It's my birthday!)
Short answer: bad. In Halo: Reach the Elites (Sangheili) are fighting for the Covenant. This is rather confusing to many players as they were allied with the UNSC in previous Halo games, but keep in mind that Halo: Reach is set before even the first Halo game, Halo: Combat Evolved.