Most of the monsters move in groups. Each group consists of 10-12 Soldier Grade Monsters that were led by a Sergeant Grade Monsters. These humanoid monsters would never move individually except for the special cases.
For Goblins, a formation of 12 Goblin Soldiers led by a Goblin Sergeant was a standard whereas for the Hornless Orcs, 10 Orc Soldiers led by an Orc Sergeant was a standard group.
Since there were five groups of Orcs on their way to the Goblinthorn Village, Aeon could tell there were 5 Orc Sergeants and 50 Orc Soldiers.
'I was expecting the runaway Orc to bring only two Orc Groups. It is going to be a tough fight from the beginning.'
According to Aeon's crazy plan, he expected the number of the Orc Groups coming to kill him and his Goblin Followers would drastically increase.
However, he didn't expect the Orc Captain to send five Orc Groups from the start.