"Scouting mission" refers to an exploration or investigation carried out to gather information or assess a situation before making decisions or taking action. Full definition
First it's a rescue mission, then it's an aggressive scouting mission, then a data retrieval, a weapon theft and / or assassination and so on. (gamerliving.net)
One unique thing that Uber did in preparation for the launch of Express Pool was to send teams of employees to walk the streets on scouting missions for ideal pickup and dropoff locations. (theverge.com)
Essentially replacing the original game's Expedition Mode, Another Mode lets you play through the game's large number of scout missions with any its 3o - plus playable characters that you have available. (gamespew.com)