My Epic fail

I have a T5 lock so before you get all crazy and reroll a group let me give you one tip. Spec all your locks demo and roll with the felguard for a while. See if that works better for you. /Castsequence your intercepts and starting pwning face again.

For PVP you have a number of replies. For PvE 5man, I would strongly recommend getting a paladin tank instead of one of your warlocks.

yeah, i just thought my 5x warlock team ruled the 0-60 dungeons. I was unstoppable... then came the outlands. They can't take any boss anywhere.
There isn't a single outland boss that isn't completely immune to all types of fear and horror. All of the bosses seem to have special warlock pet killing powers.
I got them to 70 but I pretty much gave up on them. Durn would do an AoE that wiped all of my pets at once and then proceed to wipe my team all at once.
It was cool to see the warlocks get all of the DoTs going, 25+ dots look awsome and most items can't survive long enough to get more than a few of them going.
I rolled shaman and they smoke Durn without even having to cast a single heal, the don't have too many problem doing all of the dungeons. I do SV, SL, Mech, Bot, etc.
The shaman don't do as well as locks for crowd control but they eat bosses.

for Durn I drop totems and 5x earth elementals, cast heroic, cast trinket and just LB him to death. The elementals seem almost immue to is AoE.

..and that's why I stopped pvp on my locks :( I've tried the
destro builds/demo builds etc. but the fact is a single druid is able
to heal through ALL of the dots on him and groups like rouges/mages can
wipe all of them off with a single click. Locks are a dot class
and with the increased stamina/dot duration things just take too long
to die. I still love my locks but unfortunately they're not as op
as I hoped. Still run pve with them (have a pally tank though)
once in a while.

A prot paladin and 4 elemental shaman would be a very nice group for instance running, that's for sure. Almost unfair, to be honest. :)

This is not uncommon. My locks are at about 550 +dmg and any competent healing class can easily outheal my DoTs unless I keep them CC'd or interrupted. Now, granted, I'm demonology spec, so that cuts down on DoT dmg dramatically. Round-robin deathcoil and felhunters are about the only thing that works. With shammies, I started killing healy druids at 48. :P

There's plenty of group composition thread around here.

Priest + 4x Warlocks excel in BG for their Dot and Run.

That is far from open area world PvP with you against A druid and a rogue, both have abilities to get away from a fight, and also have the ability to start a fight to their advantage. It is not you the person that is epic fail, it's just how the situation is.

You tried Durn the Hungerer without a tank? I was pretty well geared tank, and I needed serious healing for that guy. Same with the Gorefiend quests chain in SMV. I actually tanked that at 69 when I was summoned in.

Anyway, getting to 70 is the end, it's an end to a goal, then you're beginning to "gear up."

When my 3 shamans were newly 70, I got ganked bad in the island. After some serious grinding in BG to gear up, how I roam around and noobs steer clear of me even when I aoe pull 5 nagas for the quests.

But if you want to start doing instances, then you'd want a tank for the job.

haha cloak of shadows strikes again...honestly though, can anyone here complain about anything? are you doing this for the challenge or are you doing this to be OP? Cloak of Shadows...is so important, but everyone cries about it...and yeah i have leveled 3 rogues so i am definitely biased here.

all the QQ has paid off with chaos bolt though, if you spec destro on four locks in the x-pac you can chaos bolt right through that spell! so that is pretty good.

in reading this i am also wondering about my set up - 3 locks / pally and priest. I am thinking the pally tanking will help me level this group to 70, and i really want to do it despite any disadvantages they have over shaman. I think you are right to level your new group with a pally, then you can swap one lock out for a pally and go Pally/3lock/Priest at times for certain PvE content. I am sure this will help tremendously. I also think that locks will be even better in the x-pac, though shaman will continue to shine for boxing.

i am sure to follow in your footsteps - i am going to level this lock group first, then do something with druids and shaman. on the side i have a hunter group, a rogue/warrior group, and a mage group. all i can say is stick with it, you can't expect to beat every comp. even a good shaman group can fall to a rogue/pally/mage that knows what's up. i know first hand....if it wasn't easier for 3 or 4 people to communicate and use their mobility to kill a four/five boxer then we'd all be lying about the so called challenge.

That is the exact same experience i had with my locks. Tried affliction for a while in bgs but there are just to many counters and any healing class can heal through the damage. After getting owned for a while i ended up switching to 41/20 for the felguard stun and the increase range on my shadowbolts and the 70 percent resist to spellpushback since i liked to aoe grind with hellfire a lot. Towards the end i found dots to be almost useless. I had about 900 spelldamage as destruction and over 1000 as demo when i stopped playing them and i still coudln't even do a full normal shadow labs/shattered halls run. I know exactly how you're feeling, except for the amazing aoe fearming i was doing i was totally disappointed in my lock/priest team as well. That is why i switched to shamans about 3 months ago and haven't had a single urge to switch back. Now heroics are a complete joke, i fly through heroic mgt, which is one of if not the hardest heroic in the game, in under 35 minutes. Locks were awesome until you hit 70, after that fear becomes almost useless, dots become almost useless, you're super squishy due to wearing cloth and you lack the ability to kite other players well. I found that 3 well geared players could easily take me down. Which definitely doesn't happen with the shamans. But if you still feel like playing them i always rolled with one felguard out so i could see upcoming rogues and had a button for it's spell lock so i could shut down casters, and another keybinding to devour magic on my priest so i basically had an 8 second pvp trinket against fear and sheep.

My S3 warlock sais that with 4 Felhunter Pets on druid, with /castsequenced Spell Locks and Automatic Devour Magic, the druid isn't going to have any HoTs on him, or will be getting a casted heal off. Drain mana x 4 + Mana burn x 2 = 5-6k mana gone in 5 seconds. Don't bother putting Curse of Tongues on a single druid.

The rogue, however, you will not be able to deal with until you get a couple hundred resilience. Most geared Rogues owned my shaman when they were 70 wearing their crappy greens. Shaman have an easier time outlasting Rogues, as they can at least heal themselves while the rogue uses CoS.

I have more advise, but at the moment, it is just your lack of gear. Locks specced for Demo or Aff have always been a class that simply needs to outlast the opponent to win, and you just don't have the gear to do that VS geared opponents at this point.

I would concentrate on AV and EotS, to spam Seed of Corruption vs groups, or the regular dots vs single/duos. Always use Felhunters. If you are feeling too squishy to have any offensive capabilities, respec Soul Link to use with Fel Hunter (24/37/0). This still gives you siphon life, but you lose Instant Howl of Terror. But you have your priest for Psychic Scream.

Another thing (maybe something you haven't looked into, I don't know) is that you can purchase blue PvP gear from vendors in Shattrah, Cenarion Hold in Zang, Thrallmar in HFP. To get all the pieces you need to be honoured with Keepers of Time, Cenarion Hold, Thrallmar, Lower City and .....something else (whatever rep from doing Tempest Keep instances in Netherstorm).

Either way, Brad, I think you are doing fine, and have just had an unfortunate week. I still run into duos that shut me down if I don't blow cooldowns (S3 disc priests ugh). Easy to farm things that might help is the above mentioned rep for easy PvP gear, 50 Spirit Shards to turn in for the Epic Ring with resilience, AV.

In instances, use your fears more liberally. Pull mobs back a ways and feel free to fear them. Pulled back far enough, they won't run and agro other mobs. Set each Warlocks focus to an individual mob, and that is 4 mobs you can neutralize while they take damage.

PM Mudd and take advise from him, as he has managed with 5 warlocks to attain some instance gear at 70, as per their armories.

Good Luck!