Original Post — Direct link

The fact that we have to play upwards of 50 Gambit prime matches just to finish this is absurd, and that's the fastest mode to complete this catalyst. Kills with the weapon don't even help you with the catalyst quests, just having the weapon on counts, which would incentivise doing practically all of an activity without using it until the activity is over, then switching weapons really quickly and still get progress for the full activity.

Edit: it has come to my attention recently that u/excelonn had a post about this exact same thing with nearly the exact same title about a month ago. The titles being nearly identical is a big coincidence, as I have never seen his post before, but it's nice to know that others that are trying to reach out about this catalyst quest.

External link →
almost 5 years ago - /u/dmg04 - Direct link

The team has been looking at feedback over the season on this catalyst, and will be applying what they've learned to future catalysts.

One point specifically from the OP:

Kills with the weapon don't even help you with the catalyst quests, just having the weapon on counts, which would incentivise doing practically all of an activity without using it until the activity is over, then switching weapons really quickly and still get progress for the full activity.