cannibals are bullet spongues??

hi ive been doing my first dust playthrough and honestly i love the hardcore feeling of the mod, since i already have 200ish hours in new vegas this is a breath of fresh air

but lately in my run ive noticed that enemies take more and more bullets to kill wich shouldnt be something that happens in DUST, i installed the dust expansion project wich idk if it may have changed some of those features and if not can someone help me point out the problem?