‘Uniquely Average Gamers’ and DattoDoesDestiny both have new videos out that give us a concise overview of the upgrade paths we’ll be able to enhance our Guardian’s with. They weigh in with their thoughts about the armor stats, and which of them you’ll want to focus on. Unfortunately this is a limited preview of the subclasses we’ll have in the full game, but the information is still really valuable.
A subclass is an array of abilities that you choose, based on how’d you like your Guardian to progress. All of these abilities will improve your overall class while simultaneously allowing you to differentiate from other Warlocks, Hunter’s or Titan’s based on your subclass choice.
The big takeaway is that nearly all of the buffs you’ll have access to will be equally balanced. Based on how you prefer to play, you can for example decide whether you would like to recharge HP faster or improve overall armor rating.
For level 15 subclasses, check out this article.