I play pve almost exclusively and I switch between ToM and Tlaloc. If your careful and constantly aware of your health nothing can out DPS ToM people that say it's only good on the death singers and oryx just don't know how to properly play with it. Outside of tlalocs amazing overflow perk when you play as a storm caller and have pc as your last perk, the underrated grenadier perk on the Tlaloc becomes amazing. Couple that with the claws and not only do you have a fast firing high impact scout rifle with zero kick you will have grenades and melees for days.