Spot 300 enemies at objectives

I usually pop a TUGs on an objective, then hang back and fly the drone around for this kind of assignment.

Honestly, and some people might not like this, playing a supportive role as recon with the drone nets you a lot of spots and spot assists. Im not saying you should camp at the back and do nothing but spam the drone, but helping with mid to long range fire on the obj youre trying to take and spotting enemies as they push helps both your team and helps you get the challenge knocked out pretty quick. 

Over the course of 1 match on ridge 13, i played aggressively as recon, pushing forward when points got taken, and providing fire and spot support on points that my team was trying to cap, i had 23 kills and 137 spot assists between my tugs and drone.

Breakthrough with a drone over the objective site.  If on D very easy to set up some tugs on base as well.  Liberation peak is a great map for this IMO.

Breakthrough, TUG & Drone.

Play breakthrough with recon. When you're on defense get close to a point, find a safe spot and put your drone up. You'll have 300 spots done in 4-5 games, maybe less.

Yeah just played on breakthrough got around 50 spots, tried finding it on portal but nothing counted grr, Wish we could customer search a normal game mode like breakthrough but with a specific map.

You can select your game mode and map in the multiplayer custom search section.  uncheck everything but breakthrough and liberation peak map.

Thanks guys completed it