Ive been playing Big Time Gangster for a long time, but I just can't seem to advance past round 17. I have five gangsters : Smoove, Mikey D, String, Wolf, and Lacroix. No health upgrades yet. I got lucky in the lotto and won Smoove a gun (Heavy 12, no dual wield). I have MP5Ks for Wolf and LaCroix, and the Genx Hawk (at least I think that's what it is) for String and Mikey.
I've tried to earn free credits from apps and stuff, but now they keep wanting me to do stuff like credit card stuff and all that. I'm wondering what I need to be successful in thee arena. Any tips?