Ritter has a nice way of saying the Ukrainians got their butts kicked. From Ritter at sputnikglobe.com:

© Sputnik/ Go to the mediabank
Kiev’s troops failed to “stabilize the battlefield” in Avdeyevka due to scanty firepower, former US Marine Corps intelligence officer Scott Ritter told Sputnik.
Russian Defense Minister Sergei Shoigu told President Vladimir Putin earlier this week that an operation to take control of Avdeyevka was carried out with minimal losses. According to Shoigu, an area of 31.75 square kilometers has been freed as a result of the capture of the town from Ukrainian nationalists.
Speaking to Sputnik, former US Marine Corps intelligence officer Scott Ritter said that Ukraine lost the battle of Avdeyevka for several reasons, the most dominant of which is that they simply don’t have the firepower necessary to stabilize the battlefield.