Boss enemies have 40% more health and inflict up to 15% increased damage.
Non-boss enemies enrage at 30% health remaining, dealing 100% increased damage until defeated.
Non-boss enemies have 20% more health and inflict up to 30% increased damage.
When any non-boss enemy dies, its death cry empowers nearby allies, increasing their maximum health and damage by 20%.
Enemies pay far less attention to threat generated by tanks.