This was the faelas mission where you need to kill more orcs than some drakes attacking them. Bonus objectives being to kill a drake and to kill 15 orcs with explosions.
The orcs don’t chase you because they are chasing the drakes.
The trick i found is to immediately explode everything in the map and do detonate on the fire pit. If this doesn’t bring you to 15, restart. There is a decent chance that if you can explode them all without a drake stealing one, you will get it, but you still might not. If a drake explodes one with their AOE breath, you just lost.
The drake killing is actually harder than i thought because dismount & kill is super buggy. more often than not, mounting a drake that i had shadow mounted did not allow me to hold RB to kill/dismount. It just dismounted me with the drake still alive. I’m not sure whether this is intentional because of something i did or a bug.
Then to kill the orcs i found backstabbing to be ideal. The drakes do rip through them, but the orcs are mostly distracted so with backstab and the talent that lets you multi backstab, you can kill them really fast.