I recall see the video of the following:
At 11:16:27 the tank or CEV (combat engineering vehicle) first appears.
At 11:18:40-Q1 the tank starts to demolish the rear wall of the gym. This continues on until 12:09:02-Q3 when the tank leaves the rear area of the gym. There were a total of 19 instances that the tank penetrated the gym.
At 11:23:02-Q3 & Q4 the tank has penetrated the gym for the 6th time.
At 11:23:23 the tank is completely inside the gym.
[end of excerpt]
From a newsmax.com article, http://www.newsmax.com/articles/?a=2000/4/30/160306
Thank you for providing support for my point.