Start with step 1 for how to make a cool Nerf fort with turrets and space for storage. It'll be useful for your next Nerf war.
Get 4 tall objects. Arrange them in a large square shape, but don't make it too tall. You can also get more tall objects. Then you would get more blankets
Place a blanket over the top. Lay 4 heavy objects on the towers. You can use also use clips to hold it in place.
Cover the front, back, and 1 side of the fort with cardboard taped to the floor and blanket. Create small windows and sniper slots in the cardboard.
Get a tower the height of a cardboard box. Place it in the front of the uncovered side and mount a Vulcan. (You can also use any gun that has a bi-pod, and is heavy with large ammo capacity.)
Get a case. Fill it with ammo and put it in the fort. Add food and drinks if needed. Have pillows or other things inside. Keep a weapons stockpile.
Cover the uncovered side, leaving space to retrieve the Vulcan. Man the sniper slots for defense.