Even though this thread went from "I need some time off" in the case of 6x6 to "How can low levels beat high levels", I like the ideas.
The hiring of hitmen to take out tough players I wanted to reserve for players (hey I can't beat level 15 boy, can I give you 10K to knock him down Mr level 17?), but all the high-levels are in the same gang! Perhaps an NPC hitman option, where you spend credits/cash on to hospitalize an opponent is something the playerbase would be interested in.
Example, say you want to take out a level 10, and you are leve 3. Perhaps hire a level 10 hitman to give it a shot. The combat would look similar to normal combat, but you are viewing the attack log of your hitman. Perhaps this hitman would cost $10K or so, and if he failed you'd go to jail for awhile for conspiracy to commit murder or something like that. And of course, it will cost energy to find the hitman
As for gang attacks, the gang code in combat already boosts defenders a bit. But with the switch to one-click combat attackers will no longer have an advantage (no running, no switching weapons options yet, etc.). This actually gives us a lot more options to play with for combat additions.
Perhaps hiring backup, or combining forces with a gang member in one-click combat can actually work now? Would players think having an option to link combat with another online gang member where they both can attack as one against an opponent? There would have to be an extra cost (perhaps double energy cost for BOTH, and if they lose they BOTH go to the hospital).
For example, perhaps a level 7 and a level 6 are getting beat on by a level 12 player they cannot beat, even if he is down to half health. Perhaps one player can act as the combat leader and have the other player select an option to "join in combat" with the other player. The end result would be the level 7 attacking as usual, but with boosted chances at success. Now maybe the code has both attackers firing their guns, or perhaps just the level 7 attacker acting as a level 10+?
I see both of these options entirely doable (the hiring of the hitman seems like it would be easier to complete first).