Finding orbs
Press Up to get a quick view of nearby orbs on the mini-map. You can repeat this after a few seconds.
Use the following trick to find all the non-renegade orbs faster. Press Start during game play, then quickly press B, Up and look at your mini-map. It will be zoomed out, and it will also make the orb ping (Up) work in a much greater range. It will show you more orbs around you, and in a bigger area, which will in turn allow you to find the orbs faster as long as they are not renegade orbs.
With an Agility 4 or greater, get a helicopter from the Agency tower and fly it as high as possible. Click and hold the Left Analog-stick to activate its jets to force the mini-map to zoom out as it moves faster. Tap Up to begin scanning for orbs.