You can get access to any gear by doing anything this time around. No need to raid at all. You will get CXP (command experience at level 70) faster in groups but raiding is not very efficient right now. A 4 man group doing uprisings (new watered down 4 man flash points done in 20 mins) is some of the best CXP for your time in game. Every day there is a bonus that move around the Galactic command board so even when it lands on solo planet heroics, those are good to do. Same with PVP or flash points. OPS still being on the lower end for the time right now even with the bonus.
At 70 as you level up galactic command, you get a crate that once opened given some random gear, random orange shells, random schematic for crafting and something random from these (Jawa Scraps, Companion gifts, pet, mount, or a reputation item). RNG does indeed suck for the gamer but you can get to those crates doing nothing but solo content.
AT 70, you get no gear from anything you do except the RNG crates. No gear from bosses in OPS or flash points or uprisings. PVE and PVP gear is now the same. No separation of stats. It's all about the RNG crates and that grind.
For the solo player, nothing changes. You will grind the content for crates and pray to RNGeesus that you get lucky. No amount of time put in game nor harder difficulty will help your chances at better gear. You can craft things but none are mod-able.
The change coming is for PVP and OPS. PVP will drop unassembled pieces. OPS bosses have an RNG chance to drop an unassemble gear token. The difference between the two is that the unassembled pieces from PVP take a number we dont know yet of them to make one unassembled gear token. One whole gear token might drop from OPS bosses or it may not. Only consolation in OPS is that the last boss does have a 100% drop rate for unassembled gear tokens. Problem is the slot that it might be for is RNG. More RNG trying to fix their extremely bad RNG.
BUT were not done yet. As to make sure you must keep grinding the content for galactic command crates. You will also need command tokens. A new drop coming in RNG crates. You will always get one but what bw made sure to not tell anyone is how many do you need per unassembled gear token to get the specific item you want? Most expect bw to make the cost of command tokens to be rather high as to make sure you still have to grind old content for RNG crates.
It kinds looks like this:
PVP - Unassembled gear piece (NEED "X" to make unassembled gear token) - No idea how many.
PVE - RNG chance at complete unassembled gear token from all bosses expect last which is 100% drop but RNG slot.
Combine unassembled gear token with NEW command tokens (one per RNG crate - 100% drop but no clue how many it will take) - 1 specific gear piece decided by which gear token you have. If gear token is belt, you get a belt with set bonus on it.
It's also tiered for difficulty as well. Harder difficulty gets better unassembled gear token if it drop at all.
They wanted to give a chance at specific gear instead of so much reliance on RNG but you cannot fix the problems of RNG by adding in more RNG and thats what bw has done and their RNG is really bad in those crates. It might not be as bad for a new or returning gamer like yourself but if you played at all for gear in 4.0, the gear for the first 90 levels of galactic command is garbage and 90 levels is a lot to level through. If there was a positive side to that at all it's that you can disintegrate the opened crate gear before you add it to your inventory for some extra CXP but it's so little it doesn't do much.
It's a much more convoluted system than the crystal gear system they got rid of as they claimed it was to hard to understand. This new one is easier bw claimed. Truth is thats pretty much PR BS from bioware. Crystal gear system was much easier.
No rewards at all. Only CXP to get to that next RNG crate and your choices don't matter at all as they are locked in from the first time you play through. You can repeat the new chapters on that harder difficulty (Still cannot redo the much better class stories from launch though) You can see the other choices outcome but for your toon nothing changes from the first time you did it. Either way though, choices still don't make any real difference.
You can buy some armorings, mods and enhancements from the GTN. There not BIS or anything but there better than the first 90 levels of GC.
Before 70 you can still use tokens to buy armorings, mods and enchancements but not at 70. It's all about the CXP grind and galactic command. No gear really drops off anything. Just RNG crates you grind for.
No more crystal gear or choosing a specific slot of gear to fill in a gap can be obtained as that system was wiped out. As I said, bw claimed it was to hard to understand and the new one is so much easier. Most call BS on that.
You can just jump back in, play it solo and grind and get a RANDOM chance at ALL gear (even set gear and BIS) at 70 only but NOT in a short grind. After about the first 10-15 CXP levels, it slows you way down in how many points you need to get to the next level.
Tier 1: Command Rank 1-90. Rating 230
Tier 2: Command Rank 91 – 180. Rating 234/236
Tier 3: Command Rank 181-300. Rating 240/242.
The grind bw added this round is massive. Unlike anything swtor has ever seen before. For gamers that have been here. It really does suck because we mainly have 2+ year old content with little new worth doing. New gamers the grind of 2+ year old content wont be as bad.
Here is a different write up if you want to check it out. Dulfy does a good job.
http://dulfy.net/2016/11/29/swtor-ga...command-guide/