My basic Mafia Wars hints to playing the game: Play daily, give energy packs often, give gifts ( receive them too, never suggest 'trading' a gift unless it is rare), and be kind to your Mafia family members (and those not in your family also).
To get alot of Mafia Wars codes all you need to do is have one... take the one code copy it... then put in code thingy. Then paste the code back in and change the last number 1 up (ex:(not a real...
It all depends on the person you attacked. If that particular person doesn't have available balance then you won't have any earnings. But if they have, then you'll get a piece of their wealth.
Here are some of the missions on Mafia Wars:
Beat Up Rival Gangster, Collect Protection Money, Rough Up Dealers, Rob a Pimp, Take Out a Rogue Cop, Perform a Hit, Destroy Enemy Mob Hideout, Kill a...