Today's (8/22/12) update of the D&D Next playtest contained a list of "Specialties", with this "helpful" info:
When you create your character, you can choose a specialty. You may take the specialty suggested by your class, or you may choose a different one.
A specialty comprises a handful of feats, which provide special abilities to your character. You gain a feat at levels 1, 3, 6, and 9.
Each feat’s entry describes the feat’s effect in the game world and includes a benefit, which explains how the feat works in the game rules.
Some feats have prerequisites. For example, the Aura of Souls feat requires a character to be able to cast spells. You must meet a feat’s prerequisites to take that feat. You can take a feat only once, unless a feat says otherwise.
So what exactly is a specialty? Is it just a group of (arbitrarily) grouped feats?
Do I have to take the feats in order? For instance, the two playtest feats under the Archer specialty have no requirements. Could I take the Sniper feat without taking the Rapid Shot feat?
Going beyond that, is there any significance of the listed level on a Specialty Feat? I.e., the Sniper feat is listed as level 3 - does that mean it has an implicit requirement of level 3, or can I take it at first level?
(I feel it's important to add that the only place in the playtest material that lists feats is the "Specialties" document)