[thatguy96]

The M18 and M36 Tank Destroyers were supplied to the South Koreans. The United States Army had phased all its tank destroyers out with the disbanding of the entire Tank Destroyer Corps in 1945. The USMC never had any tank destroyers to my knowledge. It did receive some M3 SPGs, but used them for fire support rather than anti-tank duties.

The M18 was a completely different design from the M10 and M36. More modern is hard to say. It entered service two years after the M10 did. The M36 was based on the M10.