The first thing to remember is that this raid is all about teams and coordination. For a guild to have any hope of finishing heroic, it must first have a full 50 members. Second, those members must have certain toons at max level, including zetas. Finally, each member needs to be assigned to a specific phase based on teams that the can deploy.
The thing is that this raid is completely different from the other two. In the other two, a couple of strong players could carry a guild through and everyone who at least participated would get Han/Kenobi shards. Not happening here. No one (or handful of players) is going to carry a guild through this raid.
This raid is essentially a reward for big time guilds whose members are all in. If you're not competing in heroic, I would suggest getting together with your guild members and coordinate and assign your attacks.