if you mean in forge, then no.
Halo Reach, Halo: Combat Evolved, Halo 2, Halo 3: ODST, and Halo 3 were made by Bungie; Halo: Wars was created by Ensemble Studios; Halo: Combat Evolved Anniversary and Halo 4 were created by 343 Interactive
Before.
bungie did
Halo Reach takes place before Halo: CE So between Reach and Halo 3 would be Halo:CE and Halo 2
The Halo time period takes place starting in 2498 and ending in March 3 2553.
A Hawk is not from Halo 3 it is from the game Halo Wars which is not associated with Bungie. Halo Wars Ensemble Studios created the Hawk. You may be thinking of the Hornet or Pelican.
$3.99
At a college
There is halo 3 ODST but bungie has stopped making new halos. Halo reach takes place before combat evolved.
When Halo 3 was formed.
Yes, you have to pay for Xbox Live for any game
Halo reach is a massive multiplayer edition of halo, incorporating halo 1 2 and 3 all into 1 matchmaking system. there will be all new characters and all new maps to choose from, the beta is expected to be released march 2010