The last couple times I have been in the DZ and Rogue players have come up on me and I shoot them it says immune on them. Is this a build or perk that they are using or is it an exploit in the game?
if you are using burn/bleed/shock ammo and the target is immune to your ammo it will deal dmg but say immune on top
so you deal dmg but dont apply the status effect
if it is not this, but actually bein immune to weapondmg, i have no clue