Originally Posted by
johnnykindle
I also did chaosgods hauler exploit and it worked perfectly. Maxed out my roller at lvl 20. Just go to the place where the hulker and monarch spawn (near the prokect ageis pt 1 side mission with the 4 turrets, by the last turret) and you can run over mad hellbugs there and gain quick roller levels.
Thanks chaosgods!
BTW if the hauler disappears, if you exit the vehicle, you can respawn it back by just summoning your vehicle again (once you have the mission active)