From a source I've forgotten, Chinese translated into English I believe:
The Chinese, according to the Chinese, deployed elements of the 2nd Tank Division into Korea:
"2nd Tank Division, November 1950:
Division HQ (Commander Xiao Feng, Political Commissioner Wang Shiren)
- Recon Battalion.
- Engineering Battalion
- AAA Battalion
- Transport Battalion
- Medical Battalion
- Communication Company
- Military Police Company
- Repair and Maintenance Depot
- Field Hospital
3rd Tank Regiment
4th Tank Regiment
Motorized Infantry Regiment (former 258th Regiment)
Mobile Artillery Regiment (former 306th Regiment) "
"Korean War Period:
On November 11th, 1950, two Soviet Tank Regiments; one from the Ukraine Security Guards and the other from the Moscow Guards arrived in Xuzhou and transferred their equipment to the 2nd Tank Division en masse. Both the 3rd and 4th Tank Regiments received 30 T-34 tanks, six IS-2 heavy tanks, four ISU 122mm self-propelled guns, and two T-34 armored recovery variants each. The Mobile Artillery Regiment received one battalion of twelve ISU-122 and two battalions of twelve 76.2mm field guns and soon they were dispatched to the Korean War. Much as had been the pattern during the Chinese Civil War, in Korea the 2nd Tank Division was not employed as a whole unit, but rather split out to serve as infantry support units performing fire support tasks.
2nd Tank Division’s 3rd Tank Regiment, AAA Regiment, and Engineering Regiment entered Korea on May 30th, 1951 and saw action by June as a support element of the 39th and 43rd Army. They claimed two tank kills and one damaged in 18 engagements but were almost wiped out by UN forces at the same time. The 3rd Tank regiment left Korea on July 20th 1952 and returned back to Xuzhou on August 1st. The following year the 1st, 2nd, and 3rd Company of the 3rd Tank Regiment took part in the 1953 National Day Parade in Tiananmen Square.
The 4th Tank Regiment arrived in Korea on June 27th 1952 as a replacement for the 3rd and had a better combat performance while supporting the 23rd and 38th Army. As an example, in eight engagements Tank Number 215, a T-34, claimed five tank kills and one damaged. In addition, it was credited with 26 bunkers, nine artillery pieces and one truck destroyed. As a result, Tank 215 was honored as a “People’s Heroic Tank” in July 1952 and is currently in display at the Tank Museum in Beijing.
Both the Motorized Infantry Regiment and Mobile Artillery Regiment were deployed to Korea on Feb 15th, 1953, and served as mobile defense units to guard against a possible UN amphibious or airborne operation into China’s supply route into Korea and saw no action. On May 1953, they were ordered to the front to support the 23rd and 24th Army during the Battle of Seoul. The AAA Regiment returned back to Xuzhou on May 19th 1954, and the Mobile Artillery Regiment on December 9th 1954. On March 30th, 1955, the Motorized Infantry Regiment took on elements of 13 companies from the 12th, 20th, and 57th Army to reconstitute its former strength. It was placed under the command of Jinan Military Region on July 1st, 1955. "
in addition, elements of the 1st Armoured Division were committed:
1st, 2nd Armoured Regiment, 1 Motorised Regiment in about May 1951
Also committed was the 6th Independent Armoured Regiment about this time.
"Elements of PLA 3rd Tank Division arrived in Korea in June 1952. Its 4th, 5th and 6th Tank Regiments relieved 1st, 2nd and 3rd Tank Regiments in June, while its 2nd Independent Tank
Regiment relieved 1st Independent Tank Regiment in October."
https://en.wikipedia.org/w/index.php?title=Chinese_People%27s_Volunteer_Army_order_of_battle&oldid=910212156The Chinese did use M5A1 Stuarts, taken from the Nationalists, but it is not known they used them in Korea. The footage of them in action is also reported as from the civil war.
Perhaps you should be distinguishing between Chinese and North Korean armour, rather than lumping them together as "communist". I presume you're doing separate North Korean and Chinese lists?
Photographic evidence shows the Is-2 the Chinese received were a mix of Is-2 and Is-2m, although that probably doesn't make any difference in BKC/CWC terms.
In BKC terms, a Chinese Tank Regiment would be:
RHQ CV8 (T-34/85)
1 Battalion: 1x Is-2 (2 if you want to be generous!)
3 Battalions@ (1 optional HQ CV7)
3 Companies@ 1x T-34/85
1 Battery: 1x ISU-122
Like the North Koreans, they over-reported the unit sizes, a battalion being a mere 10x T-34/85 in the Chinese case. Although doctrinally they seem to have allocated them out as infantry support, so a whole unit of Chinese armour would be rare.
Mark