I am assuming this is a bug but I can’t be sure so I’d like some conformation.
Val’s tier 2 sniper rifle says the following.
Enable your team mates to deal 12000 bonus damage to the monster.
However, it is not counting the actual damage.
In one of my recent games the score board stated I got around 3500 bonus damage from the sniper rifle.
However only 120 points were added to the tier 2 progress bar.
This leads me to believe that instead of damage, it’s counting the number of hits your team made on the target.
Which makes it near impossible to obtain.