82:37 - Build

Took power amp and pistol power mod to boost the damage. I chose predator as the weapon because even if I accidentally shoot (which I did a few times), the damage is crap. Skipped warp for the build so as to avoid even accidentally using it.
Collectors are by far the best faction for this because they have the least shield-heavy waves. To be honest, only w8 is shield-heavy as every other shield wave has abomb spam. I nuked w8 thrice to counter that.
I did fire the weapon unintentionally a few times over the course of the game - may be 5 or 6 but it's predator without weapon mods or ammo vs. platinum enemies. So, it's hardly substantial.