I made this build drunk and high as hell but it seems to work fine.
Mayby thats how you are supposed to play jimmy anyway so...
http://pd2skills.com/#/v3/mACEFgHJKL:eacDEFGhIjkLr:gl::w55:s70:a7
thats old

http://pd2skills.com/#/v3/mACEFhjL:eFGhIjkLr:tMnOpQR:glr:fr:ibcdea::w4:s53:a7
newer for assault-rifles/smg
i just like this one the best :pills:

basically that
as weapon choices its dependant on difficulty this build is very versatile
use what you want, or are most comfortable with, but higher difficulties this is optimized to shotguns.
perk deck of course maniac :)
did crime spree 480 with this build so its gud
now im using the injector deck, since why not fits jimmy to get injected all the time :D