Help reading tab - rhythm line

I am learning the guitar tab for "London Calling" - the official guitar transcription has a rhythm line for the strumming but I don't know how to read it or what the rhythm marks mean. Can anyone help me out on how the strumming is supposed to sound on the following two parts (Rhy. Fig. 2 & Rhy. Fig. 4).

The intro to the song is easy (4 down beats) and I am very familiar w/ guitar tabs, but I can't read music so the rhythm symbols are a mystery to me on these two parts. Fig. 2 is the strumming for the verses and Fig. 4 is part of the chorus. On Fig. 4, the first line is the same as Fig. 2, so I am primarily interested in how that second line is supposed to sound. Can anyone explain this to me, or point me to a site that can help me out?

Thanks,
R

OK,

In 4/4 you're going to be strumming 2 notes per beat. The symbol that looks like a 7 is a rest - play nothing. The 'X' means to hit the string muted to give a percussive click, and then the rectangles are normal 'notes'.

you have a few variations there, but think of it as 8 even strums per bar - just substitute the rests and clicks (x) where necessary instead of letting it ring. In the second example there is a bar of 'D' which is a little different. Three strums, the third of which lasts the same time as the first two together.

With tab, listening to the recording is your best guide. Rhythm notation can be helpful, but listening to the record is way easier if you can...

An there you go! :)