Grenadier

Gain access to the following four perks: 
1.) Both you and your Criminal AI gain a 50% damage bonus with throwable grenades. 
2.) Receive 2 throwable grenades, 2 grenade launcher ammo, 2 missile launcher ammo, and 2  advanced missile launcher ammo per minute.
3.) You also deal 50% more damage with the grenade launcher, the missile launcher, and the advanced missile launcher.
4.) Finally, you spawn with 50% more throwable grenades. 

Note: The Grenade Launcher and the Advanced Missile Launcher can be acquired at the Gun Store for $140k and $8000k Cash. The Missile Launcher can be acquired as an item drop from select enemies or purchased for $188k.