So about this pit quest situation....

[Kyronix]

@Kyronix dunno if this is working as designed... and it will probably make @Silent Singer pull some hair out...

but...

I had completed the entire quest chain on a char.. went back later to do it again.. had to redo the whole chain.. but when I went to fight the Myrmidex in the pits others had already ran them all the way back to the furthest area. I was able to get in one flamestrike on a redlined Shaman.. and got credit for pushing them all the way back and was able to advance in the quest chain to the next parts...

If you happen to get lucky and be in the area when the battle concludes you'll get win credit for the team you were allied with if they are in fact the victors. There's not kill requirement threshold for getting credit. Sure, someone could just park themselves down there and get credit while others battled - but given this is a small piece of a larger quest chain it wasn't worth locking them out.