They have sent it to you for a reason. Not sure working out what you can 'ignor' at this stage bodes very well for you.
IF (and that is a big if) you get through selection and make it onto a course that initial document will look like a bit of light Saturday morning reading in comparison.
Look at the MATS Part 1, ANO, CAP670 for starters and you'll get the idea. Not much in those tombs that you can conveniently ignor.