Depends on the mission. Some have indicators, some tell you where to go, and some, some don't tell you anything, because it doesn't matter. For example, the Talon "Burning the Weed" mission doesn't matter where you go, so long as you collect what you're told to collect. Same with their "Kill Predators" mission. Any predator, anywhere, will count towards your total. Polaris TOP mission will send you to multiple locations, and will guide you, sometimes with markers, sometimes with just information "Go to the lava planet", and as long as it doesn't break, is a fun, complex mission.
