Coach Jason Lee had criticised his players for their lacklustre approach in Wednesday's 2-2 draw - where they conceded two late goals and salvaged a point even later - but there was no repeat this time around.
It took only four minutes for them to make their mark when Jackson's run into the right side of the circle allowed Jonty Clarke to cross and while the diving Iain McKay missed, James Tindall was on hand to convert on his reverse-stick.
Jackson had a penalty corner saved on the line by Rashid Mahmood and while Great Britain could not take advantage when Pakistan were briefly reduced to nine men - confusion reigning as they were apparently punished for having too many players on the field - they gave themselves a cushion just before the interval.
In a superb passage of play, Jackson picked out Nick Catlin in a similar position to where the first goal was created, and when he squared, Clarke had only to take a touch before slotting into an empty net.
Jackson's excellence was eventually rewarded midway through the second half when his low penalty corner flick gave his side the cushion they needed and him his third goal in his last two matches.
The East Grinstead midfielder almost added a second when his shot, destined for the far corner of the goal, was tipped behind by Imran Shah, but it duly arrived when he flicked another penalty corner - high this time - to make it 4-0.
Sohail Abbas maintained his ratio of a goal for every one of his 347 appearances with a late corner of his own but the day belonged to Jackson, the poster boy of Great Britain hockey.