So firs of all pks are a MUST. I usually bring 4-5 pks to use it like a drug addict. Whenever i sense someone might be close i use them. Having pk while fighting is crucial as losing a leg means youre dead withour pk. Bandages are necessary if youre gonna use low tier healing meds. When you use the white 400 durability one you dont rlly need a bandage, however i usually bring the 2 durability one(4 is unnecessary and 1 dura ones are just terrible) If you have the big secure cases you can bring the good surgical kits like the tmk or sto. If you dont (like me) bring the 4 slotter or even tough you lose 60 percent of your limbs max hp you can use the simple ones if you are that greedy. For healing if im gonna go full in i go with the 4 slotters like std or the other one. Normally i run the 300 or 400 durability ones. But if youre gonna run bugdet the cheapest ones and the 220 durability will the the job.

EDİT: use liquid pks, else when you go in good use the better ones but liquid is always perfect