There are some great vids on youtube about how to do the various jumps.
Most of them take a fair bit of practice, but that one is not too bad.
it's the peg jumps that get me... I always fall off after about 3 pegs!! LOL
Check out mikeracka's channel... he's got some great vid guides to the jumps.
Notice, they all do the jumps with an smg for the mobility. Can't do alot of them even with a rifle.
http://uk.youtube.com/user/Mikeracka