The Best Fighting game available in the steam store
Story's good. but it has different move-sets which is weird and you'll play as the "hero" as they wants you to which means you cant pick the hero that you like to play the campaign! OK? OK .
If you're interested to play co-op , you can do so . Max group size [2]
Multiplayer battles are just fine but , servers sucks a little but it shouldn't be much issue to deal with. also you can play solo if you want to! just select the game mode and in the new window click on the "Parameters" ,from there just turn the "Match Making" off and you're good to play on your own with bots or your own squad vs bots . you'll also get exp and rewards so there is nothing to be worried about .
Max group size depends on the mode , it should be 2 or 4 .
Terrible. but still good for extra loot and effects if you're interested :)
there is some challenges so if you beat them all you'll get your reward.there is also weekly challenge but requires lots of skill to beat or having someone with you to help! max group [2]

One last thing , don't haste to unlock all the heroes , you'll get them all in time . just requires you to spent time.
Good Luck .