The Akuri tribe's method of combat, like their hunting style, was to hide in the shadows and strike a deadly blow; their weapons and tactics meant they couldn't and wouldn't engage openly in a fight.
Even with guns, the revenge methods of the Akuri tribe remained the same, lurking in the dark and striking only when the opportunity arose. This approach was not efficient but was safe enough; therefore, Gao Yang wasn't particularly worried about the safety of the Chieftain and his people.
However, the message received from Lendel caused Gao Yang to start worrying about their safety, for the Akuri tribe was familiar with the grasslands; on the grasslands, if they hid, no one could find them, and if they found someone, no one could escape. But the jungle was different.