Deadshot
Bullseye
Red Hood
Deathstroke
Etrigan
Black Adam
Taskmaster
Deadshot and Bullseye would have a competitive relationship,whilst deathstroke would constantly be trying to show Red Hood tricks of the trade,only to be told Hood doesn't need a father.
Taskmaster and Slade would constantly clash over who should be team leader.
Well my first arc would bring the team together.Black Adam would aquire a powerful mystic artifact,and the US government,fearing it's power,would hire Taskmaster,Deathstroke and Bullseye to assasinate BA.
Meanwhile Deadshot is hired by BA as a bodyguard,a Red herring if you will.As the team are on their way,Red Hood attempts to steal the artifact,only to be interrupted by them all.During the scuffle BA shatters the artifact,summoning Etrigan up from hell and binding him to BA.They are then surrounded by the USA who now have evidence as to their illegal activities,but who blackmail them into working as a team.They have nothing on Etrigan,but as he now must stay within 3 km of BA he decides to join up as muscle and for some killing.
They have proof of their illegalities and can blackmail them.Also Hood wants to bring down baddies.Plus they're mercenaries who are also getting paid for their work.A little quirk could be seeing them compare missions and having pissing contests.
Ba will stay as they have top-notch mystics trying to remove Etrigan....or so they tell him....bum-bum-baaaaaa.
hmmmm second arc?In the first stage they would show up and and put a stop to a rampaging Bizarro before Superman,who upon arriving would demand an answer and suspect an ulterior motive.He and BA would have a bit of a slug until A government agent shows up and tells Supes they're legit.At the end of the stage We would see the Jla talking about the group and deciding something has to be done incase they cause another villians united fiasco.
Second stage?Green and Red arrow break into the Thunderbolt headquarters and are having a poke about,they find the central database thing,but are then discovered by Taskmaster and Red Hood.
Superman would fly to shield and ask them to try and put a stop to this madness,only to be told by tony that this way some of the worlds most dangerous crims are under control of the government.Superman would leave in a huff,only to be intercepted by Ba who tells him to back off.He and Superman would then engage in a ariel battle until Wonder Woman shows up to stop them.She starts to help Superman and they gain the advantage until Superman is hit by a blast of Hellfire that kncks him to the ground.We see Etrigan,pulled by the curse is now helping Ba.
It would be cool if The Team was actually secretly Trying to figure out why the government wants them so badly... like them trying to uncover a conspiracy between Starks Civil War (then there could be a tie-in).
I Actually had an idea similar to this when discussing what I would do if I wrote my own Avengers Group...
Anyway... didn't mean to diminish your idea. Please continue!
Third Stage....
The Red Hood and Taskmaster are talking to GA/RA whilst the scene with BA ans Supes is on the monitor screen behind them.Red Hood says to Red Arrow" Speedy,it's been a long time,still addicted to the good stuff?" "The names Red Arrow now chump" "Red Arrow?You know some people would complain about copyright,but i'll just take it as a homage to my greatness"
Red Hood and RA would then start fighting whilst GA says to Taskmaster "we gonna let the kids work it out or should we step in?" He and Taskmaster just smile and then throw themeselves at eachother.
Meanwhile at Washington(where BA and Etrigan are)Superman gets up and glares at Etrigan,who starts to rush at him.Superman and WW switch,with WW taking on Etrigan and Supes with BA.After being thrown around into the ground,Superman gets up and tries to tackle BA,Who screams SHAZAM!!! dodging the lightning,which hits Superman and knocks him down to earth again.BA lands and smirks at Superman,who launches a full on blat of Heat vision at BA,who sidesteps,and the blast actually strikes and melts the washington monument.
BA just smiles and says "you are in soooo much trouble" he then has Etrigan teleport them away,as reporters run in and start harassing Supes and WW.They arrive back into their headquarters to find Ga/RA bound and gagged with apples on their heads.The apples have several arrows in them and it seems Taskmaster and Red Hood were seeing who could get the most arrows in without hitting the hero.
Ba tells them to cut them lose and has Etrigan send them away.They start to talk as a hidden camera looks at them and we see a voice say "They're good" then we see a voice in an evil red bubble say"Yes,They're perfect"