That is exactly why my brothers decided to give up and quit. They're both level 50s and said that Ilum is still laggy and buggy and through a valor exploit, many people already had battlemaster armor and they were sick of it. They said that in PvP, you either got rolled or rolled others and there weren't many fun battles.
Couple of things you and your brothers should know before quitting.
There was no exploit for valor by farming NPCs. The champion turret NPCs do not yield valor, hit for 4K to tank specs, and there are two of them at the Medcenter where players spawn.
Also, with all of the Ilum objectives captured by the Empire, they gain 200 valor per Player Kill by camping / AE attacking the Republic Spawn. In addition, Republic forces could AE tag enemy players and receive credit from turret kills. Both sides obtained valor through the base camping that was done, albeit it was in favor of Empire. Also, check out the new blog entry from a Bioware Dev regarding people gaining more Valor than intended - http://www.swtor.com/blog/ilum-pvp-issues.
Saying that many people had Battlemaster gear is incorrect. It takes 47000 valor (235 player kills at 200 valor each) to go from Rank 59 to Rank 60 valor. You need Rank 60 valor to even start obtaining Battlemaster gear. It would take literally 1000s of player kills in order to advance from even Rank 50 to Rank 60, which becomes more unlikely as Republic players catch on about being spawn camped and quit the game, cutting off the supply of valor to Empire.
Also, Battlemaster gear is only obtainable via 2 Dailies (1 Ilum, 1 Warzone) and 2 Weeklies (1 Ilum, 1 Warzone). These bags have a RNG variable that makes it somewhat difficult to obtain.
The above facts make it seem unlikely that someone become Battlemaster via farming the enemy spawn and obtained all the Battlemaster gear they need to get an advantage.
Lastly, Battlemaster gear has an expertise rating that is only slightly higher than Champion gear (50 vs 46). This means that with 14 pieces of Battlemaster gear, you would have a total of 700 Expertise compared to someone fully geared in Champion gear with 644 Expertise.
By googling, I found the formula for damage dealt increased and damage taken reduced associated with Expertise is as follows (taken from http://sithwarrior.com/forums/Thread-SWTOR-formula-list):
PvP Damage Bonus % = 20*(1-(1-(0.01/0.2))^((Expertise/max(Level,20))/0.72))
PvP Damage Reduction % = 20*(1-(1-(0.01/0.2))^((Expertise/max(Level,20))/0.72))
The above translates to: 12.62% vs 12.01% for Battlemaster vs Champion, which is negligible at best. Ofcourse someone in Battlemaster will have other stat increases besides Expertise.
Overall, the 1 day of base camping and supposed Battlemaster gear didn't cause as much damage as people think.
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