The small battlefield did have a strange terrain. As a matter of fact, this world was not small. Lu Li and the team had been traveling for two days without running into any alien races.
There were rarely any plains here. Mountains and valleys dotted the world, making the land fragmented and dense with forests. This world had no lack of rocks and canons. Given that the gravity was strong, nobody chose to fly. They travelled on feet.
The specific land condition rendered large combat groups ineffective, unless warriors stood in a long line. But that would make them too obvious a target and those at the front wouldn't be able to help out those at the back and vice versa. That kind of formation would only lead to more harm than benefit.
After two days' of travelling, Lu Li exclaimed to himself that the route Jiang Tianshun directed was quite good. They would find places to hide easily and spot their enemies if they were really close to the gathering place of the Barbarian Race.