For all the people that think Halo Reach multiplayer is gonna be a battle in space then i think your wrong.....
in campaign yes im quite sure you will fight in space but as for multiplayer no......see Reach was a main military planet for the marines it was not just some normal planet. Since in the trailer it says we have Spartans on the ground i think its just gonna be another halo matchmaking experience, just different maps, characters, maybe some customizeable options, different game types and of course old and new weapons... any one agree?