Can you do random online searches for campaign co-op? this wasnt in halo 3

Can you do random online searches in firefight? this wasnt in odst

I heard the ranking system is more simple in halo reach...is that true? can you explain it?

thanks

1) Yes but it will be added later in an update. 

2) Yes

3) I don't have the answer

are you sur about that update? for number 1?

2.) okay thanks. is it in waves like horde? or what

As far as #1, yeah. I read somewhere on Bungie.net that they didn't want anyone's first play through to be ruined so they are waiting a little to do an update. Then you'll be able to do campaign matchmaking.

To answer your question on what's Firefight like, here:http://halo.wikia.com/wiki/Firefight I know you are a Gears head and probably love Horde ( I mean who doesn't ) but Firefight is good too, loads of customization options.