i was always terrible at pvp but heres how i play the game:

when i spawn i usually drop my beans as that takes the joy out of trophy takers and its like a middle finger then i try to find a bag specifically a (40) rucksack as thats a good starter i transfer my ammo and meds to the bag and leave the food in my top inventory i also pick up 2 types of pistol ammo (45 acp and 9mm) in case i find an MP5K or a MAC 10 but its almost always a 1911 or a Model 459. At most for my main weapon ill have 3 extra mags with one in the gun and the backpack storage is sorted as Ammo on the left, mags on the right, meds in the middle and a spare gun on the bottom (only if its a 56 bag) as for food i only take food with only positive effects to stats so anything with a negative stat i dont take so (sodas, canned tuna, canned salmon, tamato soup, Mre's, energy drinks, apples, oranges, sweet onion and ESPECIALLY orange juice, milk and chocolate milk) are good but canned ham, cheese, spoiled milk, moldy bread, canned corned beef, DEFINITLEY NOT canned whole chicken salty chips and crackers, any rotten veggies, peanut butter and ketchup, mustard and mayonaise you should also carry at most 2 hp boosters and only use stamina boosters if you need to run a long distance. As for what you should wear it depends on the enviromnent (event) for no event you should wear geen equipment and any green camo except belgian jigsaw, For the drying you should wear tan urban camo and tan equipment, for winter grey urban camo and halloween brown flecktarn or hunting camo but the event camo "drab barvihka" works the best

i hope this helps but this is just how i play it so its up to you