Can only American soldiers build the sandbag in Hong Jing 2 "Glory of the Republic"? Why did the PLA crouch there after midnight? What's the use?

Question 1: Only soldiers can have sandbags, use pistols when standing, and use machine guns (that is, sandbags) after crouching, which is more powerful than pistols 150%. The People's Liberation Army used machine guns when standing, and threw grenades after crouching, which doubled its power. Of course, this power is not absolute, because different weapons have different killing effects on different arms and different armor.

Question 2: the magnetic storm infantry, that is, the electromagnetic soldiers you mentioned, can't let the enemy become their own soldiers. His weapon is to release magnetic storms, which are very fierce and have great lethality to people and tanks. As for you, Yuri, Yuri, or the Soul Commando turned the enemy soldiers into their own soldiers, or the enemy tanks into their own tanks.

Question 3: There are three arms that can blow themselves up in * * * and national glory. One is a terrorist, the other is crazy Ivan, and the other is eternal Ivan who stole the enemy's combat laboratory with spies. In fact, the real self-explosion is only the terrorists, who kill the enemy by self-explosion, while Ivan and Ivan in time and space need to be killed by the enemy to explode.

Question 4: The introduction of various services and arms has been clearly stated on the first floor, although it was copied from other places.