Tested on live.
Way A -> by far best way
First you must get archimonde down. After that go back to Tyrande Whisperwind, Talk to her and mob will start to spwan. She will almost isntashot it. Then one other will spawn, again killed by Tyrande.
They earn rep + Epix! (got exalted in 48 hrs while i was anti afk macroing)
if your guild doesn't kill archimonde yet but you can access mount hjal here you go with the
Way B
get in the istance before killing any boss with some friends ( i suggest at least 15 well geared ppl with at least 2 healer 1 tank and many dps!). Talk with jaina the wave 1 will pop.
Easy to do wave but no rep, no loot :\
Don't give up, wait for the wave number two. Let the npc tank everything execpt the target you focus. The focus must be tanket by your tank.
From the second wave mob will earn exp and loot (included very nice epic items).
If you want to stop farming (beceuse you're tired, or the boss is spawning in the next wave, or there are no npc left helping you) it is so easy
Just make some step backward and let the npc aggroing the waves. Let jaina dies without entering the fight, after she dies wave despawns, you exit combat and after 1 min all friendly ncp respanws and you are ready to start again or recall
my 1st post (my guild loved this tactic, hope you too)