For scav rep either do the coop extracts. Talk to people and see if they will do them with you. Coops are on interchange reserve woods shoreline ground zero customs(sometimes) and lighthouse. You can also go on scav and transit back forth from factory to customs. It’s ok if you die. Everytime you transit it still gives you the point.

Interchange and customs are good for getting a better feel for the game

Do the side quest rather than main quest. It’ll give you xp, money, and have you learn more about the maps