So there are two major schools of thought for how to win a mini-battle in 4v4 and 5v5 matches.
1) Have (at minimum) the controller and strong DPS get the healer down quick. This eliminates the health regen and makes killing the remainder easy. The downside to this strategy is that the controller in open to pounce on the healer and if your team doesn't have a tank things can go south quickly.
2) Have only the controller go after the healer and have the DPS's and tank (if you have one) burn down the controller. The rational of this strategy is that if the healer is debuffed then his heals with be too small to save the controller. Getting the controller down first will result in everyone else not having the power to hold up strongly in battle. The downside to this strategy is that if the opponents have a tank the debuffs will be getting cleared quickly and your controller probably won't be able to solo the healer.
I have seen both strategies work very well if implemented correctly. I think the main thing a group needs is an established strategy that everyone agrees on before the match. If enough people focus on one guy he will go down.
Also, communication is key. Having someone in a 5v5 sneak off to get the rock or running off in a 4v4 to get a node mid-battle can result in the deaths of the entire team.
Stay together. Talk to each other. And focus fire.
Sashimi (NO): YO OLD PLAYERS. SASHIMI/MISIRLOU/KOOLAIDRIA HERE. I just patched and decided to check out DCUO again after 2 year hiatus. Email is Sdozeman@gmail.com, someone gimme some info on what's happened with the game!
Nuclear Rain (NO): tigerflame join NewOrde
0nyx ( NO ): sorry guys wont be playing for a long tiime my ps3 died !!! hardware corruption or something nd it wont turn on sooo catch u guys if ur still here when i come back XD IMU
The Marvel (NO): If ya see Kryto let him know he has a message waiting
Atma Rage: whats up yall. FOS runs need to start soon. Anyone down?
Kole: Guys GEARS OF WAR 3 out ADD ME ON XBL xhandsomedevilx
IRONMIKE: damn rad .... good rockin with ya cuz .... u will be missed ... but i do hope u get the itch to come back .... peace bra
Krytoflame: Rad we miss u already. Dont forget about us and we all need to stay tigfht on psn.
The Marvel (NO): Rad … NOOOO! You must stay!! If ya gotta go CaW will miss ya! Hoep to see ya down the road!
Rad: Hmm... *ponders thoughts* Bye.
Rad: Oh and Seksy stache lol
Rad: What are the little icons above peoples avatars? They say helpful and such
Rad: I for one can whole heartedly say that I do not like Light powers.
Mister Murricuh: Will someone add me back?
Crimson Dragon (NO): Go Hard Light! woot woot!
SaintAndrew: hey guys.. i made my lantern. his name is HardLightWill
Rad: But still shitty ques lol
Krytoflame: U should dark. new raid new content megaservers, lot of good stuff.
Dark Memory: Lol, I did kind of quit, or went on Hiatus, was getting fed up with the bugs etc, but I am interested in playing again perhaps
Krytoflame: yeah dark come back.