I'm giving up on building
Its rewards are bare to none. You're better off raiding because that gets you both more currency and you'll rank up faster. Building doesn't grant me anything other than 'hurr hur look at me I got kills on newbs' and then others speedrun through my base or abandon my outpost, or get 1 to 0 raids. Also building takes time and you'll lose more than gaining rewards.
I'm going to reach Master rank then stop playing. I'm at gold 03 so I'm close then I'm done with this game until late June unless they make building more rewarding and less punishing.