I dont know how its really working in DB yet but I had a quick brainstorm and just wrote down what passed through up there in the Windtunnel 
thats what i would like to try tbh, i know its not complete and probatly wrong in so many ways, but could be fun testing it imo 
All Classes, HP 120
Medic Health regenerates with 2 HP/s = 1 minute to completely regenerate which is like a zillion years in a Fast FPS Game
No other Class Regenerates health
Weapons
Main Weapon Headshots 40 HP Damage = 3 shot/kill
Secondary Weapon Headshots 30 HP Damage = 4 shoot/kill
Body shots doing 20 HP Damage = 6 shoot/kill
Sniperrifle Headshots Scoped long distance Headshot 100 HP Damage
Sniperrifle Headshots Scoped Short distance Headshot 120 HP Damage
Sniperrifle Headshots Scoped long distance Bodyshot 50 HP Damage
Sniperrifle Headshots Scoped Short distance Bodyshot 60 HP Damage
Unscoped same as Main Weapon
Soldier Heavy Weapon, Same as Maingun but with increased firing rate
Other
C4 should be possible to plant everywhere, Damage 300 HP in a certain small Radius then 100 HP in a larger radius
Arty Damage 550 HP in a certain Radius then 100 HP in a larger radius
Nades Damage 110 HP in a certain small Radius then 60 HP in a larger radius
Turrets
- headshots Damage 30 HP
- Bodyshots Damage 15 HP
- Fast firingrate
- 120 HP Damage to destroy it, should have a healthbar over it so engy can repair when needed, before its completely destroyed, should take longer to deploy tbh
EV - 1100 HP Damage to destroy it = 2 Arty or 10 nades or combination
Knife - stab from behind Damage 120 HP = assasinkill
- stab from side Damage 60 HP = stiil advantages of surprise
- stab from front Damage 30 HP = plain annoying to see ppl come towards you with knife, they deserve to die
Flamer?
Panzer?
Accessories:
Medics shouldnt be allowed to heal themselves, only to heal other teammates including other medics
No medpacks dropped when they die
as we cant grab opponents weapons, there should be a drop with a choosen amount of bullets when people dies, like 5-10 bullets?

