Light armor will have around 10k with major up. Medium around 15k. Heavy around 20k
Use fracture/breach with sharpened weapons. CP damage stars for best results. Maxed at 100 invested is only 8% dmg gain for penetration, compaired to a 27 point investment anywhere else in damage mod stars.
Never really understood heavy armor in this game as pvp goes. It is reduced significantly to easy and doesnt provide any real benefits other them straight 8% more damage midigation then the other2 choices. Heard the idea of crit resist being standard or percentage mod so impen could max out easier and points could be spread better but...i digress