Or there must be alot ways how to get tier0 worst ever weapon when you have empty inventory and too lazy to gather some junk and wood to craft 10mm pistol which doesn't require any skills, DR and DT against who? Brahmins? Then simply make brahmins weaker than now, I don't see any point in this, and the main thing is how you're going to explain this? Poor 1st level bluesuiter has stoneskin spell on him because he is 1st level? And then when he getting more and more experienced, god stops to care about him and stops buff him with his protection spells.
If you're too lazy to finish some mini quests to get 2nd level (and you don't need >1 CH for this), or too lazy to scavenge some junk and chop some wood to craft 10mm pistol, or too lazy to kill brahmins, DR and DT won't change anything anyway, you still be too lazy to do anything, you'll only stand in the middle of the desert surrounded by some rats who hitting you for no damage, then critically hit you below 0 HP, then you're too lazy to type ~cuttheveins and then you creating a topic on forum that stupid rats surrounded you, hitting you for no damage, and you're laying there with <0 HP, GM please help.
If you want to make DR and DT as protection against PKs and not abusable in TC at the same time, then... how you're going to do that? If PK can't kill bluesuiter, then noone can do that, what difference between PK in TC and PK in the desert? Bluesuiter will die from both, or not die from both.
Just give more ways to obtain tier0 guns for lazy people, so they can kill some brahmins, and make brahmins slower or weaker for lazy people who don't want to get 2nd level on quests, and if you mentats or atleast 3 CH, you may get 4th or 5th level without even shooting anything and with 20% outdoorsman in RT encounters. You don't need DT and DR to do that.