I'm a level 40 that hasn't played in 14 months. My base use to be great but now it's obsolete. I have no idea what I need to do in order to upgrade it and make it strong again. I'm currently building the second Drone Silo and upgrading Avalanche Turrets. Beyond that I'm clueless and need ideas. Could someone please tell me what's best, and if possible, give me a picture of a high level base I can look to copy.