Hello,

I need some ideas and suggestions for Body Armor DDF ratings and Body Armor in overall.
I am having some issues, because there seems to be a large difference between a +1 DDF and +3 DDF.
Right now I am using Armor categories: Light/Medium/Heavy, and Coverage mostly used against called shots,
and area-based attacks, like explosions.

Where goes the fine line between, say, +1 DDF and +2 DDF?
For example, synthetic jacket is +1 DDF?, and projectile resisting vest [Kevlar, etc.] is +2 DDF?

What kind of body armor counts as +3 DDF? or even +4 DDF? (system-agnostic)
Does different material protect against different types of damage?

Need some ideas and suggestions.