[Homo Erectus](https://en.wikipedia.org/wiki/Homo_erectus) is one of the oldest of the Homo species that went extinct 100,000 years ago. Let's say that Homo Erectus made it to Australia and was isolated on that continent until British colonization. Let's also say that the Homo Erectus were able to quickly copy the military technology of the British. What advantages would a Homo Erectus have also a Homo Sapiens in warfare?

Homo Erectus were generally taller than the average person today which would lead to a reach advantage in melee combat. They also had thicker skulls than humans which would mean head injuries are less debilitating. On the other hand, their brains were generally smaller than humans which could mean they aren't as effective at war strategy.