This can be gotten fairly easily but with some effort is still required. My suggestion is pick as big a map as possible and play as the Driller and Haz1. Then simply construct your pipeline as far as it will go until you run out of space. When you run out of space then start drilling a tunnel. Be mindful to collect some nitra because you will need to refill your driller quite a few times (i had to resupply myself 4 times). Make sure your turns aren't too sharp and clear any obstructions in your path (this includes lootbugs). You don't have to fully build the pipeline, laying it down is enough. Riding uphill is generally good for keeping you grinding the pipeline slowly and extending your ride time. Just keep building and testing it until the achievement pops, you don't even have to finish the match. Rock and Stone!