heres what you should do
get a DD
garrison not crimson bolt if you plan on spamming bullet shower or normal shots
or get a HH garrison if you plan on using desperado (trust me its much better for desperado then the DD)
thats assuming you want to be a pistol user (its seems everyone does*hugs my shotgun*)
now heres what armours you should use
for pvp: switch between ghost ring and holy armour
for lvling: use the orc card that gives 30% reflect
everything else you can figure out on your own

hint: dex gears arent as useful as they seem