Under the top under TSS progression there's a checklist of stuff that has to be done, but they've changed this since I dunno when, and current info seems to be innaccurate to some degree.
Example: Frostcrypt progression
My guild was able to whittle down what's actually needed for frostcrypt:
Fergarin 1, 2, 3
Odeen
Kangur
Undengar will basically completely flag you for FC 1, doing odeen, kangur, or undengar a few times will get you the needed faction.
Faction for the raids can be checked right outside FC from the guy that shortcuts you into the raid by saying fergarin to him.
My guild is currently thinking about jumping over to ashengate side and starting work on there, the question is , which 3 group tasks are *required* to attend the raids there, current list can't be correct, or rather not all of them are probably needed, as the case with frostcrypt only requires Fergarin 1, 2, 3, to be 85'd into raids.
So the question is , does anyone know what 3-6 group tasks are *required* to raid ashengate?