This build is mostly for aggressive party play, but works solo as well.
3.9K Firearms to unlock weapon talents
120K Skill power for maximum health on shield
Optional rolls: Chest(HP or HoK), Kneepads - resistance of your choice
for more Firearms, but less DtE (damage to elites), roll 1 item with FA, gear mods will be all 5x 267 Stamina
more tanky: 4x riotshield resistance (instead of damage performance mods)
for more sustain(solo play mostly): roll HoK (health on kill) on either or all of chest, gloves,
Primary for DPS, you can change one talent for some healing etc. also Destructive should be tiny bit better than Deadly.
Secondary: healing weapon, sustained can heal for around 10 000 HP/S on elite enemies
Pistol: 204 GS, not 256 , coolheaded reduce CD of signature skills, other talent anything you want.
Flash-bang sticky for CC (crowd control)