Socom has from time to time had issues but they can get them fixed fairly quickly
There is the pop culture notion that somehow Russian weapons are better, simpler, more reliable.
Fact is it's total propaganda.
The main reason for the myths is simply pop culture regurgitation of claims and stories that often have been fourth hand and weapons that are in poor condition.
Example Socom has issues early after 2001 with the M4A1 for example it eventually lead to them creating the SCAR program.
Well people started looking in to what was happening to the carbines and here was the revelation. SOCOM operators were taking the weapons they used in training to battle and they had this tactic of laying down full auto fire well breaking contact. So they were pouring magazines after magazines through the weapon in long bursts in training then taking these same weapons to battle.
Well the M4A1 (of the time) was the result of modifying a carbine meant for clerks and artillery and truck drivers who needeneeded to defend themselves but not a full battle rifle it was as a result not designed as a Machine gun. It was focused more with commonality with the large M16. So they took the weapon out of its intended tollarence and were heating up the barrel to beyond heat treating and it failed.
SOCOM and the Army changed to a heavier barrel around the same time SCAR L was entering field trails and what happened? The issue was fixed and the Socom operators said why bother with Scar L?
SCAR H was kept but that was because there was no 7.62x51mm battle rifle in service. SCAR L found homes abroad but not in SOCOM.