Pearlescents: I spent a couple weeks doing 5 or 6 glitched armory runs a night. Never found anything. Played 1 public game where guys were using hacked weapons to kill craw; dozens on the ground.
Cheaters prosper here.
Be cautious and remember to backup your characters first... Borderland's engine does not have a focus on security and data integrity; playing with cheaters can get your saves corrupted permanently, even if you have not personally used the cheats.
Gonna restart this game soon, since I bought all DLCs cheap in a Steam sale.
First time I played with Hunter. Everyone tells me Hunter is underpowered. Is that true? I hated Brick since rocket launchers are stupid and his Berserkiness just tends to get you killed. When I tried using Siren her power duration was TOO short and couldn't be used often enough, and IIRC she wasn't all that great with standard weapons.
Guess I'll go with the Soldier dude.
All characters are weak at first; they all need some skill points invested to shine.
Hunter is definitely not underpowered. His skills make him good with pistols and sniper rifles. Sniper rifles are hard to start with, since you have such a tiny ammo capacity. Go with pistols first, respec later if you want to go sniper. He has a skill to allow his bullets to ignore shield completely - it's a slaughter for some enemies types.
Later on you will find a type of pistol called Masher - it's in fact a shotgun in your hand. If you go with the Gun Crazy tree it'd be really powerful.
Bloodwing is not good indoors due to his bird brain path-finding; and you may not want to invest too much in multiple hit, because you want it to return ASAP to heal you.
As RedKing said, Brick's designed to abuse second wind. He has skills that lengthens the duration and increase healing rate. You'd charge in, do a lot of damage, get second wind, and go again. You are right about rocket launchers tho. Those called Triple Helix has much better accuracy, so try them out when you get one - aim at the ground near enemies, not the enemies themselves.
Lilith is really powerful with SMGs. At first you may run out of ammo quite fast, so pack some other weapon types to backup. Early on you can only use Phasewalk as a means of escape; later on you can use it offensively.
Roland is good with shotguns and combat rifles. He can end up with shotguns that can double as sniper rifles, or shoot endless streams of lead with combat rifles. Don't count on the turret to do the killing for you - it won't be enough. Instead use the turret to distract, heal and restock ammo.
The good thing is respec is dirt cheap... so do it often to experiment. You can also use the fan site's skill calculator (the one on official site isn't updated for the DLCs):
http://87bazillion.com/skillcalculator/Also note that you gain weapon proficiency as you kill; if you focus on a single weapon type it will be more powerful than other weapons with similar stats.