I moved the file from Single Player Scenarios. We will move the file back after the completion of the project.
The scenario is practically unplayable because of the lag. There are 16'177 units on a Medium, a 4 Player map. The amount of player 1 units is unnecessary, I simply had the game 'running' on hard after the gate fell while reading, 'the game running' is not the right expression, it was rather slow motion. All I did was drag boxes around units and tasked them towards the enemy to win with 5103 units left. A reduction of 5'000 or 6'000 (for the challenge) player 1 units for your next update could reduce the lag.
Did you upload the final version? The file dates 06/30/2006.
Edit: You edited the description and updated with a file dated 01/21/08 and I assume it is your final version, I moved it back.