A difficult game, read below for tips.
Account has to be at least 10 days to play.

You can weave 100% if you time at the right time when blocking. To gain muscle buy weights at fitness.
Eat lettuce to reduce muscle.

Cop: To join cops go to the police station, if you execute anyone without cuffs you'll be automatically kicked off. Use cuffs instead.
Criminals: Ransack banks and several others small time shops in order to gain wanted or cash.

Gun saves - however, can be lost by death, or logging when KO, or 0 ammo.

Cash drop takes 30%