Let's see... *Gunman*
First off, you want to raise your Focus..
Focus = Helps with ranged
Perception = Helps with Melee
I'm not sure how Belief factors in, but eventually it gives you buffs to things like dodge ranged and such, so I guess it's a good idea...
Melee Tip - Get used to which types of attacks (power, speed, grab) cause what kind of status (dizzy, staggered, off-balance) because some moves require your opponent to be in a certain status to work.
Ranged Tip - If they're in Free Fire range, so are you. (Lol) But seriously, use status effects like Stun or Rooted to keep Melee opponents far away, then just put some distance between you both and pelt them from long range.
There's lots of clothing that improves Melee and Ranged damage, as well as less clothing that improves kungfu damage and SMG damage.
Dunno if this will work after CR2.0 though..
-AlicethePattern, Head Archivist, Mega City Department of Energy