You shouldn't be giving up after being killed that often, if you're playing with the team/squad you'll get revived 90% of the time unless you all lose that skirmish.
That and I was generally earning $100k+ per game, meaning even if I was lone wolf sniping, losing $30k wasn't the end of the world.
If you're ever short of cash just grab a car and a load of building supplies, spend one game building a massive FOB and you'll clear around $50k every 30-40 minutes anyway
Also the binos/range finder is a cheat code for cash, just whip it out every now and again, spot everything you can and the cash will come rolling in!