This was the most "sci-fi" battle Duanmu Huai had encountered since his time travel. On the ground, massive mechanical soldiers were charging forward. Meanwhile, peculiar flying objects suspended in the sky kept firing beams of laser-like light at Duanmu Huai and his team. The danger of these beams could be estimated by the rapid percentage decrease in the durability of their power armor.
These things were as powerful as bomb guns!
Fortunately, Duanmu Huai was not fighting alone here. Quantity could make up for quality; puppets were deployed like crazy, in other words, the number of puppets was used to offset the superior quality of the opponent's robot legion.
Luckily the puppets were indeed cost-free.