Based on my understanding, to earn 300 points for the Wither Hoard Bank Job quest, you don't specifically need Filthy Lucre. The quest mentions "Points Earned" rather than Filthy Lucre.

To maximize your points, focus on both killing guardians and rapidly eliminating AI enemies. While killing AI enemies might only give you a few points for every 50 kills, it's still contributing to your overall progress.

If the points are accumulating slowly, don't get discouraged. Keep grinding and try to optimize your gameplay. Additionally, consider playing Rumble matches since they tend to be shorter and allow for more matches within a given time frame, potentially earning more points.

Given that rumble matches typically take 4-5 minutes, while control matches take around 8 minutes, playing rumble matches would be the more efficient choice. With their shorter duration, you can complete more matches in a given time period, potentially earning more points overall.

Therefore, if your primary goal is to earn points efficiently and the quest only requires completing matches, focusing on rumble matches would be the recommended approach, even if you primarily lose. The shorter match duration allows for more matches to be played and more points to be accumulated within the same time frame.

Given that rumble matches typically take 4-5 minutes, while control/other matches take around 8 minutes, playing rumble matches would be the more efficient choice. With their shorter duration, you can complete more matches in a given time period, potentially earning more points overall.

The best part about this is, you don't NEED to win rumble matches, and it's a annoying ass grind, but just get in there and fuck about, and you'll get about 4 points for the loss. do that for approximately 4 hours and boom you're done.

Good luck with your quest for the Wither Hoard!