Having realised that i apologize
To emulate what you did I set out to do the same...
this worked for me (except for the occasional feign death resist..).
pets, 2 cats, two birds...
split in two groups. 1 bird / 1 cat per group... set them up as two twos about 5 yards apart.
dismiss team B’s pets. Everyone drops explosive traps and waits a for cooldowns.
Team A sends pets... and everyone starts dps.
when 1st wake of skeletons spawn hunter from Group B casts volley on the pets grabbing all the skeletons onto their explosive traps... the two of them then FD and re drop explosive traps. Summon pets and send them, beastial wraith on them with intimidation.
When 2nd wave spawns, hunter from group A volley’s onto their traps. Dismiss team A’s pets and feign death to drop team A’s explosive traps... resummon, Heal and send pets...
just rinse and repeat that.
takes a while to get the timing but once you got it just tick tock between group A and B.