Combat Tips
Whoever gets the kill shot, gets the loot. Sure, their gun looks sexy, their armor may be better, or maybe your buddy can't even carry all of the loot.
Whoever gets the kill shot, now owns that loot. Ask, don't take.
When you're just walking around, an enemy can pop out of the blue and annihilate you at pretty much any time. You need to be ready to spray him back to the Walmart office chair from whence he came.
Keep your weapons on auto.
Don't immediately start sending rounds down range at the first sight of an enemy. Assume there's two, assume there's three, assume there's five. Maneuver to gain tactical advantage. When the enemy is hopelessly positioned, open fire with the force of a thousand Suns.
When the fight is over, there will always be one more.
When the killing is done, let the murder scene breathe. Then, check the area. Only after should you loot.
There is no time when you are more vulnerable, than when you are not moving. You don't need to sprint everywhere, but movement will save you when a fight kicks off. Creeping around may get you the jump sometimes, but anytime you're creeping slowly and get spotted first, you're dead.
All is lost without high penetration ammo. The recoil system and AI can hurt you, sure. But, tanky Chad-like players absorbing 30 rounds and then one tapping you, that's the real killer.
Invest in ammo.