- Although you can use the missions to guide your general upgrade path, you can breeze through many missions without making the recommended upgrades - a great way to save money. If an upgrade suggestion is too expensive, don't be afraid to try a mission once regardless. Those mission warnings often don't count for much at all.
- Don't waste your precious gold bars on minor waiting times. Sure, it's not fun to have to wait four minutes for an upgrade to arrive, but that's nothing compared to how long it will take to earn replacement gold bars. Spend your money wisely and you'll have to grind out less of it.
- Save the Trophy Hunts until you've worked your way through plenty of basic missions and contract work. Why? Well, these particular hunts are extra tricky, and so you risk wasting precious money-making energy by taking these challenges on before you and your weaponry are ready.
- Make your money-making opportunities count and focus on power upgrades over everything else. If you have a good steady aim from a distance, don't waste money upgrading your sights. Instead, increase the power of your rifles so you can force your way through tougher, more lucrative missions.
- Tempting though it is to breeze through the contract missions to make some quick cash, you'll make your energy go a little further by making use of your rifle's infrared feature. Go for heart shots wherever possible as you'll get a little extra cash - not much, but it all adds up in the end.
