Base Upgrades

More Sandbags (Cost: $N 50) Fortify Walls (Cost: $N 75) Windows (Cost: $N 100) Roof (Cost: $N 200) Ladder (Cost: $N 250) Door (Cost: $N 300) Stake It Up (Cost: $N 1,000) Health Pad (Cost: $N 1,000) Car (Cost: $N 2,500)