uhm...
vs
MMH vs Heatwave, Captain Cold, Weather Wizard, Mirror Master and Gorilla Grodd. 10 seconds prep for the rogues, they can ready their weapons and gorilla grodd has a telepathy shield protecting them and can link their mind as long as he has the strength. Battle is in mars but they can breathe normally. Morals On.
I think both the team and the martian stand a good chance but i'll choose the team in these conditions. the rogues have some tools to take him down. captain cold can beat him if he hits the martian's brain, transforming it into pure crystal, he can't be touched with the cold field up unless the martian takes some risks, if he isn't hit in the brain he can break his own limb and reform it, he can also potentially move his brain to another part of his body so captain cold isn't much of a threat.
Mirror Master can blind him but the martian can form another eyes, Mirror Master is only susceptible to telepathy after he enters the mirror dimension and is protected as long as gorilla grodd is conscious.
Heatwave is the one with the most powerful weapon but the less chance to hit him, he's susceptible to telepathy and physical attacks if the martian has the chance to attack him. he needs help from captain cold to pin the martian down and finish him.
Weather Wizard could create tornadoes to disonrientate the martian allowing captain cold to hit him more easily, his lighting bolts may be fast enough.
Gorilla Grodd is a key figure here, if he is taken down the rogues are all vulnerable to telepathy, eventually martian manhunter can overpower him either physically or mentally.
The martian manhunter could also pull a win, he has the speed advantage and is all around superior over grodd, he can take him down with enough time, he can't get close to most of the rogues but he's smart enough to cause landslides, earthquakes, and shapeshifting coupled with healing factor to his advantage. i say 6-4 in favor of the rogues.
