There are Daily and Challenge missions.
Daily missions must be accomplished within the provided time you can check on the top of the mission explanation and is only kept for three days. You can acquire R P by clearing daily missions.
Challenge missions are on a weekly basis and you can also acquire R P by clearing them.
For picked missions in the challenge missions, you need to
upgrade to either "Elite" or "Elite Plus" to play.
Daily missions must be accomplished within the provided time you can check on the top of the mission explanation and is only kept for three days. You can acquire R P by clearing daily missions.
Challenge missions are on a weekly basis and you can also acquire R P by clearing them.
For picked missions in the challenge missions, you need to
upgrade to either "Elite" or "Elite Plus" to play.