All that seems to be the struggles of early gameplay. The problem with this one is when your lieutenant levels up, it doesn't refill your oil, like other games do with the player leveling up, it usually fills your stamina/etc so you can keep playing for longer times when you first start out like almost any game on here, aiming to get to where eventually you only need to log in a few times a day to keep up without any potential waste.
If anything, I'd say the scouting system is rather similar to FKG's searching when you send out girls. More or less just for extra resources. Getting cores and emblems from scouting seems like it'll be the end game goal for it as the more you play, the more nodes you'll likely unlock. I'm not sure how many there are in this game.
I would personally say the biggest problem with this game is the cores. Lot's of things need cores to be unlocked but aside from global missions, your daily mission literally only gives 5 a day. You need 750 for a 10+1 roll, that's nearly 5 months worth and more for things like slots.