I'm probably just stupid, but why is it significant they're armed with "standard" weapons?
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That they will be used as standard infantry. If they would be guards or non combat they would get worse gear. As specialized soldiers, they would get tanks, artillery or whatever. Also it is Russian gear and not North Korean.
In other words they will be used for human wave attacks.
I think it shows that they're taking on standard combat roles. The alternative could be them strictly filling non-combat roles, such as logistics/cargo transportation or engineering-type work like building trenches and other fortifications.
Standard combat roles, ahem, are not about small arms today. They are about FPVs and small artillery.
Tell that to their targets
Don't know what's your definition of "combat roles" are, but below is the US military definition of Combat Arms.
In the U.S. Army, the following branches were traditionally classified from 1968 until 2001 as the combat arms:
Infantry (1775)
Field Artillery (Artillery 1775/ Re-designated Field Artillery 1968)
Air Defense Artillery (Created 1968)
Armor including Armored Cavalry, Light Cavalry, and formerly, Air Cavalry (Cavalry 1776/ Re-designated Armor 1950)
Since 2001, U.S. Army doctrine has included combat aviation, special operations, and combat engineer forces into the combat arms classification.
United States Marine Corps doctrine designates only Infantry forces as Combat Arms, with all other Ground Combat Element forces (Field Artillery, Assault Amphibian, Combat Engineer, Light Armored Reconnaissance, Reconnaissance, and Tank) considered Combat Support. Air Defense, as a part of Marine Aviation, is contained within the Aviation Combat Element.
I meant that every bearded urchin has an FPV drone in addition to his AK, and will drop a grenade from that FPV drone from beyond the range of small arms.
That's just not how they're using drones. They have specialised drone units, as well as drone operators that are attached to ordinary infantry units. If every guy in your unit is operating a drone, you're ridiculously vulnerable to people advancing on your position, if only because a drone, while being accurate, has a stupidly low "rate of fire". See my other comment on suppressing an enemy.
If a couple dozen soldiers with or without armoured vehicles are advancing on your position, you need a certain rate of fire to keep them pinned down to prevent them from advancing. One drone hitting that group every 30 seconds does far less of a job in that regard than a single MG sending out bursts every two seconds. Of course, once you've pinned down the advancing enemy, drones are great, but you can't get away from small arms being essential in combat situations where distances are < 400 m, which is a lot of them.
OK. TIL.