Watch the Dave and Adrian online guitar lesson by Angus Clark from Focus On: British Metal
Section 1 uses unison bends - these are harder than you might think, so take some time with it.
Section 2 is all about the gallop, which is very challenging at this tempo (for some).
Section 3 is more straight time muting, which can be tricky to switch right into after all that galloping - so this is one of those challenging arrangement concepts
The solo section is 2 distinct parts: The Adrian solo is on the lead pickup and uses trills on the pentatonic scale to create energy. The Dave solo is on the rhythm pickup and uses more scalar material and aggressive picking techniques to create impact.