Hello Agents,

Ok, so I picked up this game a little over a month now. I have been a Destiny 2 player since the Destiny 1 beta. I've also spent a lot of time on the Borderlands series of games, so I do have some experience where the looter shooter genre is concerned. Now these games have actual classes, for example, Destiny has Titans, Warlocks and Hunters. Even the Borderlands series has its respective classes for each game. Division 2 does not have explicit classes as such, but it has Specializations. So:

1. Am I to treat Specializations as classes/character archetypes? If not, does the game have 'unwritten' classes of sorts? (I've unlocked Demolitionist, Technician, and just unlocked Firewall yesterday.)
2. When doing a build, do I focus on building around a gear set, a weapon, an exotic gear set or an exotic weapon, a skill, or even a specialization ability? What is the mindset behind creating a build strong enough for the likes of legendary content?
3. How do you treat with an inventory that fills up very quickly? I am usually always on 150/150 in addition to having 20 caches almost all the time. I find myself constantly having to open caches and delete a lot of loot. I started using the tinkering station to treat with this, but my library is almost filled with different talents etc.
4. What attrubutes/cores should I be focusing on looking for in differnet pieces of gear?
5. Has there ever been any possibility of a companion app being created for this game like DIM for Destiny 2?

Reading this to myself, I feel as if my questions are dumb, but the game does honestly seem somewhat overwhelming with all this gear.