With the angel we captured we put it in a box and knowing the core is pure energy we hook up a machine onto its core to extract as much energy as possible with it being wired to the roof for electricity and being put in batteries. Its wings are held in place by a special formula which basically freezes it constantly being deployed. If it breaches it has to get past a bunch of Forcefield layering, turrets and guards that will rush in. We got it in through the roof and destroyed the box after hooking up everything
The assets are crappy because I'll refine them later