That program is not for the average bear.
not at all.
ten sets 6 reps starting with something close to your 5 or 6 rep max say 80% of your 1rm.
drop weight 10 to 20% after each set 6 times.
the killer is the 45 second rest period
probably enough to just pull off plates.
and these always go with some crazy ass tempo
of raising or lowering weight - zero pause- reset
that is what the 40x0 part means.
and will fuck most people up