Suburbia is either capo on the 2nd or 3rd fret, depending on the tuning.
The main verse is:
x02200 to x02210 (there's a hammer-on) where the bass note on the A string is hit first a few times then
x32010 to x32030 (another hammer) bass note on the A string again
x20030
after the verse is goes into a pseudo F (I'm sure it has a real name, I have no idea what that would be) ->
x33210 with a slight hammer off and on on the G string
chorus is just G, Am, pseudo F, C, G, Am, PF
At least, that's pretty close to how he played it in Vegas.
As for Empty's Theme park, I think Matt was playing Em -> G -> C -> D, but that's from memory, I'd have to check again.
