» Wed Sep 01, 2010 1:15 pm
Regarding DT:
(Damage Threshold is another Fallout 1 and 2 feature I’m glad that Obsidian is bringing back. In New Vegas, armor has a Damage Threshold value. If your armor’s DT is 12 and an enemy hits you for 15 damage, you take three points of damage. If an attack does less damage than your DT number, you take zero damage.)
Source: http://www.pcgamer.com/2010/07/02/exclusive-fallout-new-vegas-trait-revealed/
Personally, I think small frame and either trigger discipline or four eyes, haven't decided for a sniper type guy.