The beat the song is built on is one bar, played through bars 1-32, 65-80 and 97-120, and 2 more places -- 67.2% of every bar the kit plays. Learn that one and the song is very nearly finished.
It is played on hi-hat, snare and kick, counted in sixteenth notes. On its own it scores 79 out of 100 -- demanding -- and the thing that decides that is the independence between the hands and the feet.
The whole song is 91 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 76 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 76, 91, 107, 122 and 138 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 one-bar groove on hi-hat, snare and kick, in 4/4 at 138 BPM, counted in sixteenth notes. It is written out above, and it covers 67.2% of the bars the kit plays.
Bars 1-32, 65-80, 97-120 and 137-183, and 1 more place. The time is kept on the hi-hat to start with, and it changes 6 times over the song.
79 out of 100 on its own -- demanding. The song as a whole is 91 out of 100. Hard, and what makes it hard is the independence between the hands and the feet.