They have many problems but do not underestimate their raw, powerful disregard for human life, morality and love for destruction.
The Russian armed forces may be lacking in terms of operational ability but they have been fighting and testing their troops and equipment for years in Syria now.
The Nazis did the same thing during Spain’s Civil war...
You make it sound like US and UK forces have been sitting in barracks and painting rocks for the last 15 years.