Tom Clancy’s The Division is one of the most anticipated titles of the year and Ubisoft is now eagerly providing new, juicy details about the game. 
Answering the most popular questions on the official Ubisoft blog, new details on loot, experience, skills, talents, and customization were given:

Loot
There are essentially two categories of loot: weapons and equipped gear. You can equip a primary weapon, a secondary weapon and a pistol, and the weapons in these sub-categories all have individual stats designed to complement different play styles, like accuracy, range, and stability.
Mods grant additional perks to your weapons that improve some of its characteristics, like accuracy, giving extra life to weapons that might not seem all that useful initially. The equipped gear category is where you?ll find things like body armor, gloves, packs, knee pads, holsters and ? perhaps most importantly ? air filters and gas masks. 
There are also varying tiers of loot that are all color coded to designate their quality. White-colored gear is common, greens are a little less common, blues are rare, etc.
Experience
All weapons and equipped gear are gated by level, so if you?re at level six and you find a level-eight assault rifle, you can?t use that weapon until you level up. That only happens if you gain experience, and there are numerous ways to do that. Obviously, killing enemies grants experience (and this seems like the best way to gain experience in the Dark Zone, which ...