I'm trying to make a high level perk (Level 26) that has 2 ranks. I want to make it ignore a maximum of 50% of a target's DT, but I don't know how to set the multiplier value,

I know I need to use a Modified Damage Threshold (attacker) value, but do I use 0.50 for the multiplier or 1.50?

0.50 as you want to reduce it.

Thanks! Now to balance it better by making it work with specific guns.