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China's main base at west border of map.
The frontmost defense line of China. Note the Iron Dragons.
4 old Iron Curtain Devices behind the aforementioned defense line. Note the Qilin Tanks and Nuwa Cannons with permanent Nuclear Path buff.
A spot of inner defense line. note the Cyborg Vanguards.
When the Iron Curtain effects start, some specific types of defenses will be shielded.
A Black Centurion Siege Crawler is heading towards the challengers' base.