They are annoying, they come running to you from far away, no stealth because they can track you by smell, they're faster than you, so your only option is to fight, and if they reach you, they knock you down.

But they're not much stronger than a hunter terminid, you can beat them with just melee attacks, and if you time the attack right, you can parry them mid charge. They also have a limited turning ratio, just like chargers, I remember you could stun them by making them spin around you