@pandareno1999
When using Sprint Tackle during Flag of Power it's possible to plow over each entire Weed Wave with a single tackle.
What you need to do is wait in the circle until the Weeds start arriving and then run in a circular motion just inside the boundary until all the Weeds have gathered into a single pursuing crowd. Once you have that mob following you, while still moving you'll want to turn around to face them and quickly aim and Tackle.
If you're too close to the flag pole sometimes a couple of Weeds will break off from the crowd to circle around to the other side of the pole in their pursuit of you, but if you're right at the outer edge of the boundary and can turn and aim smoothly enough you can Vanquish all 10 Weeds of each Wave with a single Tackle.
As the next Wave spawns in you simply repeat, only you run in circles a little longer as your Tackle recharges.