You can also decorate your bunker using the different styles of interior designs available, but be aware this jacks up the cost.
You can upgrade your bunker with accommodations, a shooting range, and a gun locker. There is a garage section for your Mobile Operations Center, an HQ section, a weapon workshop and an area for research and production. The bunker you purchase will be the base of your operations. You will need to do the math here and find the best value for your money, but buying the cheapest warehouse is the best way to go here. The cheapest is going for a cool million and the most expensive is going for two million. Much like the warehouses, the bunkers are an expensive investment. To buy one, however, you’ll need to be either a VIP, CEO or Biker Club President. The first thing you’ll need to do is buy a Bunker. Don’t expect to get large profits at first since most of the earnings you have will need to be spent on zipping through research. Gunrunning is similar to your Bikers business but operates on a larger scale in terms of investment and returns. That is if you play like a ghetto entrepreneur and go for the supplies acquired through stealing.
The most you can make from this business is between $60,000 to $75,000 per hour. But one thing you should know before you venture into this business is that Gunrunning is not something that you should spend all your time doing. Gunrunning is one of the businesses that you will need to spend your hard-earned money on in order to earn more. In GTA 5, building your own weed, cocaine, meth, or document forgery business can make you a lot of money.