The beat the song is built on is a 2-bar phrase, played through bars 1-11, 13-15 and 17-19, and 7 more places -- 50% of every bar the kit plays. Learn that one and most of the song is already under your hands.
It is played on crash, hi-hat, high tom, mid tom, floor tom and kick, counted in thirty-second notes. On its own it scores 85 out of 100 -- hard -- and the thing that decides that is how many notes a second it asks for.
The whole song is 94 out of 100, so the beat is not the hard part: what costs you is everything around it, the joins and the fills.
A part this hard is not learned by playing it slowly and hoping. The room opens it on its simplest reduction -- the timekeeper alone, at 77 BPM -- and adds the notes back over 5 rungs, each with a tempo to reach and a gate to pass before the next.
Tempo goes 77, 93, 109, 124 and 140 BPM, and the gate at each one is 8 loops in a row with no wrong note and no wobble in the time.
PRACTISE THIS BEAT →A 2-bar phrase on crash, hi-hat, high tom, mid tom, floor tom and kick, in 4/4 at 140 BPM, counted in thirty-second notes. It is written out above, and it covers 50% of the bars the kit plays.
Bars 1-11, 13-15, 17-19 and 21-23, and 6 more places. The time is kept on the hi-hat to start with, and it changes 8 times over the song.
85 out of 100 on its own -- hard. The song as a whole is 94 out of 100. Hard, and what makes it hard is how many notes a second it asks for.