To play the rhythm guitar to make it sound like
Francis plays it, I would prefer to tune the guitar like this:
(From the thickest string to the thinnest)
D-G-D-G-B-D and put a capo on the 4th fret. The number
I set for frets will be 0=4, 1=5, 2=6 etc... This means
that a 0 will be an open string play with the capo on the
4th fret, 1 will be the 5th fret if you didn't have the capo etc...
I'll show you here:
7. 6. 5. 4. 3. 2. 1. fret no. WITHOUT capo on
-----|-----|-----|-----|--#--|-----|-----|-----| D 
