Burn without a taunt aura

So my main experience with /FA until now was a SS/fire brute. I decided I wanted to try a DM/Fire scrapper and I have leveling her and it's pretty fun. I have recently gotten her up to 30. Now that I have burn, Soul Drain and Burn is really nice, but I have been noticing that mobs seem to scatter more then I'm used to. Just to see if I was remembering wrong, I logged my brute on, and tried dropping burn without her aura running. As long as I didn't attack with anything with a taunt, I saw the same reaction, mobs would attack once or so, then run away. If I turn BA on, then no scatter, mobs stand in the burn patch just fine.

Does this get better for a scrapper? Is there some method to keep them from scattering without taking Provoke?

on my /fire scrapper, even with using blazing aura i still get the mob scatter you are talking about

i dont know if the issue is with the AI or if there is still a fear component left somewhere in burn

Well, the reason BA doesn't work on a Scrapper is that the Scrapper version doesn't have a taunt like the brute version.

Mobs run away when they get low on health. There is nothing unusual going on here. Taunt keeps them more likely to not run away.

Scrapper Burn does not have fear like it used. But does cause a lot of damage and will make mobs rub away in the same way any hard hitting damage power can. It's my second power after fire circle. On my F/F scrapper.

no its not that definitly not that, ive had full mobs of baddies run off at 3/4 hp or even full hp

i would estimate that less than half the mob was under 50% hp

Mob AI is programmed to run out of damage patches (and oftentimes debuff patches too). The Fear in Burn just made them run sooner and more assuredly. Now it takes a second or so longer for them to decide to get out of dodge. I use Caltrops and the Knock in Soaring Dragon and Golden Dragonfly to keep them in my Burn patch longer.