From what i observed is that most of the bellato ranger (avoid) always have some +7 mercy boots in case of doing a "rambo" attack or "defensive" mode combined with S & A/ S & S grade of elemental, once they get their hands on the pistol they become semi-invincible during raid. Only a few players with high end gear is able to hit this kind of bellato, save the loss from ISIS or any AoE from mage (or any payable content with additional stats I.E. Premium Cafe Card).
The 4 set effect from the CA is already providing bellato with additional dodge, so instead of going for the last set (which is i believe rarely achieved by dodgers) they go for a +7 mercy boots for additional dodge point, which is the most ranger populations of bellato there is.
But now there's a little bit a ray of hope for non mage users to hit these bellato, they no longer need to use the aiming booster just to touch those bellato. Provided they got a high end gear (S1/S2 combined with A1/A2 or S1/S2 sets) and such (im not gonna list the item one by one, but you already get the point), low to mid end geared player still struggling to hit these bellato. Earlier these 3rd war i'm even surprised that my brother said he's still missed when trynna to hit maximum avoid player of bellato, he got a S2 set of elems with +6 CA sets and full accuracy buff & charger/potion.
Means that they're still semi-invincible, but not as invincible as back then there is...